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Finding the Fourth Proportional to 29,728.80, 44,593.10 and 7,542.12

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Solution

The fourth proportional to 29,728.80, 44,593.10 and 7,542.12 is: 11,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,728.80 : 44,593.10 = 7,542.12 : x
  2. Step 2: Convert to fraction form
    29,728.80/44,593.10 = 7,542.12/x
  3. Step 3: Cross multiply
    29,728.80x = 44,593.10 × 7,542.12
  4. Step 4: Simplify right side
    29,728.80x = 336,326,473.66
  5. Step 5: Solve for x
    x = 336,326,473.66/29,728.80
  6. Step 6: Final answer
    x = 11,313.15

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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.