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Finding the Fourth Proportional to 24,687.28, 34,068.39 and 13,509.28

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Solution

The fourth proportional to 24,687.28, 34,068.39 and 13,509.28 is: 18,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,687.28 : 34,068.39 = 13,509.28 : x
  2. Step 2: Convert to fraction form
    24,687.28/34,068.39 = 13,509.28/x
  3. Step 3: Cross multiply
    24,687.28x = 34,068.39 × 13,509.28
  4. Step 4: Simplify right side
    24,687.28x = 460,239,419.66
  5. Step 5: Solve for x
    x = 460,239,419.66/24,687.28
  6. Step 6: Final answer
    x = 18,642.78

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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.