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Finding the Fourth Proportional to 52,089.92, 71,879.82 and 29,430.88

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Solution

The fourth proportional to 52,089.92, 71,879.82 and 29,430.88 is: 40,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,089.92 : 71,879.82 = 29,430.88 : x
  2. Step 2: Convert to fraction form
    52,089.92/71,879.82 = 29,430.88/x
  3. Step 3: Cross multiply
    52,089.92x = 71,879.82 × 29,430.88
  4. Step 4: Simplify right side
    52,089.92x = 2,115,486,356.84
  5. Step 5: Solve for x
    x = 2,115,486,356.84/52,089.92
  6. Step 6: Final answer
    x = 40,612.20

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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.