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Finding the Fourth Proportional to 15,287.64, 22,969.80 and 9,743.52

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Solution

The fourth proportional to 15,287.64, 22,969.80 and 9,743.52 is: 14,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.64 : 22,969.80 = 9,743.52 : x
  2. Step 2: Convert to fraction form
    15,287.64/22,969.80 = 9,743.52/x
  3. Step 3: Cross multiply
    15,287.64x = 22,969.80 × 9,743.52
  4. Step 4: Simplify right side
    15,287.64x = 223,806,705.70
  5. Step 5: Solve for x
    x = 223,806,705.70/15,287.64
  6. Step 6: Final answer
    x = 14,639.72

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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.