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Finding the Fourth Proportional to 62,155.76, 85,774.95 and 33,861.38

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Solution

The fourth proportional to 62,155.76, 85,774.95 and 33,861.38 is: 46,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,155.76 : 85,774.95 = 33,861.38 : x
  2. Step 2: Convert to fraction form
    62,155.76/85,774.95 = 33,861.38/x
  3. Step 3: Cross multiply
    62,155.76x = 85,774.95 × 33,861.38
  4. Step 4: Simplify right side
    62,155.76x = 2,904,457,747.56
  5. Step 5: Solve for x
    x = 2,904,457,747.56/62,155.76
  6. Step 6: Final answer
    x = 46,728.70

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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.