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Finding the Fourth Proportional to 18,862.55, 26,030.19 and 10,364.77

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Solution

The fourth proportional to 18,862.55, 26,030.19 and 10,364.77 is: 14,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.55 : 26,030.19 = 10,364.77 : x
  2. Step 2: Convert to fraction form
    18,862.55/26,030.19 = 10,364.77/x
  3. Step 3: Cross multiply
    18,862.55x = 26,030.19 × 10,364.77
  4. Step 4: Simplify right side
    18,862.55x = 269,796,802.26
  5. Step 5: Solve for x
    x = 269,796,802.26/18,862.55
  6. Step 6: Final answer
    x = 14,303.30

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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.