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Finding the Fourth Proportional to 61,165.70, 91,748.55 and 34,921.70

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Solution

The fourth proportional to 61,165.70, 91,748.55 and 34,921.70 is: 52,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165.70 : 91,748.55 = 34,921.70 : x
  2. Step 2: Convert to fraction form
    61,165.70/91,748.55 = 34,921.70/x
  3. Step 3: Cross multiply
    61,165.70x = 91,748.55 × 34,921.70
  4. Step 4: Simplify right side
    61,165.70x = 3,204,015,338.54
  5. Step 5: Solve for x
    x = 3,204,015,338.54/61,165.70
  6. Step 6: Final answer
    x = 52,382.55

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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.