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Finding the Fourth Proportional to 15,001.29, 20,702.64 and 9,034.88

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Solution

The fourth proportional to 15,001.29, 20,702.64 and 9,034.88 is: 12,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.29 : 20,702.64 = 9,034.88 : x
  2. Step 2: Convert to fraction form
    15,001.29/20,702.64 = 9,034.88/x
  3. Step 3: Cross multiply
    15,001.29x = 20,702.64 × 9,034.88
  4. Step 4: Simplify right side
    15,001.29x = 187,045,764.57
  5. Step 5: Solve for x
    x = 187,045,764.57/15,001.29
  6. Step 6: Final answer
    x = 12,468.65

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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.