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Finding the Fourth Proportional to 71,593.44, 107,393.88 and 18,285.93

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Solution

The fourth proportional to 71,593.44, 107,393.88 and 18,285.93 is: 27,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,593.44 : 107,393.88 = 18,285.93 : x
  2. Step 2: Convert to fraction form
    71,593.44/107,393.88 = 18,285.93/x
  3. Step 3: Cross multiply
    71,593.44x = 107,393.88 × 18,285.93
  4. Step 4: Simplify right side
    71,593.44x = 1,963,796,972.11
  5. Step 5: Solve for x
    x = 1,963,796,972.11/71,593.44
  6. Step 6: Final answer
    x = 27,429.85

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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.