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Finding the Fourth Proportional to 18,857.80, 26,024.94 and 10,474.28

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Solution

The fourth proportional to 18,857.80, 26,024.94 and 10,474.28 is: 14,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.80 : 26,024.94 = 10,474.28 : x
  2. Step 2: Convert to fraction form
    18,857.80/26,024.94 = 10,474.28/x
  3. Step 3: Cross multiply
    18,857.80x = 26,024.94 × 10,474.28
  4. Step 4: Simplify right side
    18,857.80x = 272,592,508.54
  5. Step 5: Solve for x
    x = 272,592,508.54/18,857.80
  6. Step 6: Final answer
    x = 14,455.16

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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.