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Finding the Fourth Proportional to 61,687.38, 85,113.27 and 36,196.14

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Solution

The fourth proportional to 61,687.38, 85,113.27 and 36,196.14 is: 49,941.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687.38 : 85,113.27 = 36,196.14 : x
  2. Step 2: Convert to fraction form
    61,687.38/85,113.27 = 36,196.14/x
  3. Step 3: Cross multiply
    61,687.38x = 85,113.27 × 36,196.14
  4. Step 4: Simplify right side
    61,687.38x = 3,080,771,836.78
  5. Step 5: Solve for x
    x = 3,080,771,836.78/61,687.38
  6. Step 6: Final answer
    x = 49,941.69

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Double scale
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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.