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Finding the Fourth Proportional to 18,666.17, 25,763.10 and 10,713.86

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Solution

The fourth proportional to 18,666.17, 25,763.10 and 10,713.86 is: 14,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.17 : 25,763.10 = 10,713.86 : x
  2. Step 2: Convert to fraction form
    18,666.17/25,763.10 = 10,713.86/x
  3. Step 3: Cross multiply
    18,666.17x = 25,763.10 × 10,713.86
  4. Step 4: Simplify right side
    18,666.17x = 276,022,246.57
  5. Step 5: Solve for x
    x = 276,022,246.57/18,666.17
  6. Step 6: Final answer
    x = 14,787.30

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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.