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Finding the Fourth Proportional to 57,998.80, 86,998.20 and 16,446.16

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Solution

The fourth proportional to 57,998.80, 86,998.20 and 16,446.16 is: 24,669.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998.80 : 86,998.20 = 16,446.16 : x
  2. Step 2: Convert to fraction form
    57,998.80/86,998.20 = 16,446.16/x
  3. Step 3: Cross multiply
    57,998.80x = 86,998.20 × 16,446.16
  4. Step 4: Simplify right side
    57,998.80x = 1,430,786,316.91
  5. Step 5: Solve for x
    x = 1,430,786,316.91/57,998.80
  6. Step 6: Final answer
    x = 24,669.24

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Double scale
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Similar ratio
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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.