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Finding the Fourth Proportional to 66,775.50, 92,149.88 and 36,148.62

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Solution

The fourth proportional to 66,775.50, 92,149.88 and 36,148.62 is: 49,884.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,775.50 : 92,149.88 = 36,148.62 : x
  2. Step 2: Convert to fraction form
    66,775.50/92,149.88 = 36,148.62/x
  3. Step 3: Cross multiply
    66,775.50x = 92,149.88 × 36,148.62
  4. Step 4: Simplify right side
    66,775.50x = 3,331,090,995.17
  5. Step 5: Solve for x
    x = 3,331,090,995.17/66,775.50
  6. Step 6: Final answer
    x = 49,884.93

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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.