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Finding the Fourth Proportional to 66,962.38, 100,349.68 and 48,153.92

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Solution

The fourth proportional to 66,962.38, 100,349.68 and 48,153.92 is: 72,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,962.38 : 100,349.68 = 48,153.92 : x
  2. Step 2: Convert to fraction form
    66,962.38/100,349.68 = 48,153.92/x
  3. Step 3: Cross multiply
    66,962.38x = 100,349.68 × 48,153.92
  4. Step 4: Simplify right side
    66,962.38x = 4,832,230,462.75
  5. Step 5: Solve for x
    x = 4,832,230,462.75/66,962.38
  6. Step 6: Final answer
    x = 72,163.36

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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.