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Finding the Fourth Proportional to 17,155.52, 25,729.40 and 8,713.47

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Solution

The fourth proportional to 17,155.52, 25,729.40 and 8,713.47 is: 13,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155.52 : 25,729.40 = 8,713.47 : x
  2. Step 2: Convert to fraction form
    17,155.52/25,729.40 = 8,713.47/x
  3. Step 3: Cross multiply
    17,155.52x = 25,729.40 × 8,713.47
  4. Step 4: Simplify right side
    17,155.52x = 224,192,376.80
  5. Step 5: Solve for x
    x = 224,192,376.80/17,155.52
  6. Step 6: Final answer
    x = 13,068.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.