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Finding the Fourth Proportional to 60,313.88, 90,500.31 and 42,658.00

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Solution

The fourth proportional to 60,313.88, 90,500.31 and 42,658.00 is: 64,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,313.88 : 90,500.31 = 42,658.00 : x
  2. Step 2: Convert to fraction form
    60,313.88/90,500.31 = 42,658.00/x
  3. Step 3: Cross multiply
    60,313.88x = 90,500.31 × 42,658.00
  4. Step 4: Simplify right side
    60,313.88x = 3,860,561,997.73
  5. Step 5: Solve for x
    x = 3,860,561,997.73/60,313.88
  6. Step 6: Final answer
    x = 64,007.85

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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.