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Finding the Fourth Proportional to 40,726.58, 61,089.87 and 11,143.22

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Solution

The fourth proportional to 40,726.58, 61,089.87 and 11,143.22 is: 16,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,726.58 : 61,089.87 = 11,143.22 : x
  2. Step 2: Convert to fraction form
    40,726.58/61,089.87 = 11,143.22/x
  3. Step 3: Cross multiply
    40,726.58x = 61,089.87 × 11,143.22
  4. Step 4: Simplify right side
    40,726.58x = 680,737,861.18
  5. Step 5: Solve for x
    x = 680,737,861.18/40,726.58
  6. Step 6: Final answer
    x = 16,714.83

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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.