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Finding the Fourth Proportional to 52,890.76, 72,990.62 and 29,018.85

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Solution

The fourth proportional to 52,890.76, 72,990.62 and 29,018.85 is: 40,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,890.76 : 72,990.62 = 29,018.85 : x
  2. Step 2: Convert to fraction form
    52,890.76/72,990.62 = 29,018.85/x
  3. Step 3: Cross multiply
    52,890.76x = 72,990.62 × 29,018.85
  4. Step 4: Simplify right side
    52,890.76x = 2,118,103,853.19
  5. Step 5: Solve for x
    x = 2,118,103,853.19/52,890.76
  6. Step 6: Final answer
    x = 40,046.77

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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.