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Finding the Fourth Proportional to 64,007.86, 88,306.21 and 40,092.90

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Solution

The fourth proportional to 64,007.86, 88,306.21 and 40,092.90 is: 55,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,007.86 : 88,306.21 = 40,092.90 : x
  2. Step 2: Convert to fraction form
    64,007.86/88,306.21 = 40,092.90/x
  3. Step 3: Cross multiply
    64,007.86x = 88,306.21 × 40,092.90
  4. Step 4: Simplify right side
    64,007.86x = 3,540,452,046.91
  5. Step 5: Solve for x
    x = 3,540,452,046.91/64,007.86
  6. Step 6: Final answer
    x = 55,312.77

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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.