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Finding the Fourth Proportional to 64,397.96, 88,864.08 and 36,099.80

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Solution

The fourth proportional to 64,397.96, 88,864.08 and 36,099.80 is: 49,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,397.96 : 88,864.08 = 36,099.80 : x
  2. Step 2: Convert to fraction form
    64,397.96/88,864.08 = 36,099.80/x
  3. Step 3: Cross multiply
    64,397.96x = 88,864.08 × 36,099.80
  4. Step 4: Simplify right side
    64,397.96x = 3,207,975,515.18
  5. Step 5: Solve for x
    x = 3,207,975,515.18/64,397.96
  6. Step 6: Final answer
    x = 49,814.86

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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.