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Finding the Fourth Proportional to 18,857.19, 26,022.19 and 10,474.23

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Solution

The fourth proportional to 18,857.19, 26,022.19 and 10,474.23 is: 14,454.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.19 : 26,022.19 = 10,474.23 : x
  2. Step 2: Convert to fraction form
    18,857.19/26,022.19 = 10,474.23/x
  3. Step 3: Cross multiply
    18,857.19x = 26,022.19 × 10,474.23
  4. Step 4: Simplify right side
    18,857.19x = 272,562,403.16
  5. Step 5: Solve for x
    x = 272,562,403.16/18,857.19
  6. Step 6: Final answer
    x = 14,454.03

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Half scale
Find fourth proportional to 37,714.38, 52,044.38 and 20,948.46
Double scale
Find fourth proportional to 18,858.19, 26,023.57 and 10,475.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.