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Finding the Fourth Proportional to 61,758.70, 85,220.16 and 34,901.14

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Solution

The fourth proportional to 61,758.70, 85,220.16 and 34,901.14 is: 48,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,758.70 : 85,220.16 = 34,901.14 : x
  2. Step 2: Convert to fraction form
    61,758.70/85,220.16 = 34,901.14/x
  3. Step 3: Cross multiply
    61,758.70x = 85,220.16 × 34,901.14
  4. Step 4: Simplify right side
    61,758.70x = 2,974,280,734.98
  5. Step 5: Solve for x
    x = 2,974,280,734.98/61,758.70
  6. Step 6: Final answer
    x = 48,159.70

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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.