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Finding the Fourth Proportional to 15,058.88, 20,785.20 and 9,753.92

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Solution

The fourth proportional to 15,058.88, 20,785.20 and 9,753.92 is: 13,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.88 : 20,785.20 = 9,753.92 : x
  2. Step 2: Convert to fraction form
    15,058.88/20,785.20 = 9,753.92/x
  3. Step 3: Cross multiply
    15,058.88x = 20,785.20 × 9,753.92
  4. Step 4: Simplify right side
    15,058.88x = 202,737,177.98
  5. Step 5: Solve for x
    x = 202,737,177.98/15,058.88
  6. Step 6: Final answer
    x = 13,462.97

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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.