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Finding the Fourth Proportional to 28,473.52, 42,693.24 and 9,747.32

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Solution

The fourth proportional to 28,473.52, 42,693.24 and 9,747.32 is: 14,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.52 : 42,693.24 = 9,747.32 : x
  2. Step 2: Convert to fraction form
    28,473.52/42,693.24 = 9,747.32/x
  3. Step 3: Cross multiply
    28,473.52x = 42,693.24 × 9,747.32
  4. Step 4: Simplify right side
    28,473.52x = 416,144,672.12
  5. Step 5: Solve for x
    x = 416,144,672.12/28,473.52
  6. Step 6: Final answer
    x = 14,615.15

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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.