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Finding the Fourth Proportional to 61,613.75, 85,017.36 and 34,755.57

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Solution

The fourth proportional to 61,613.75, 85,017.36 and 34,755.57 is: 47,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,613.75 : 85,017.36 = 34,755.57 : x
  2. Step 2: Convert to fraction form
    61,613.75/85,017.36 = 34,755.57/x
  3. Step 3: Cross multiply
    61,613.75x = 85,017.36 × 34,755.57
  4. Step 4: Simplify right side
    61,613.75x = 2,954,826,806.70
  5. Step 5: Solve for x
    x = 2,954,826,806.70/61,613.75
  6. Step 6: Final answer
    x = 47,957.26

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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.