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Finding the Fourth Proportional to 61,883.38, 85,391.96 and 34,655.66

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Solution

The fourth proportional to 61,883.38, 85,391.96 and 34,655.66 is: 47,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,883.38 : 85,391.96 = 34,655.66 : x
  2. Step 2: Convert to fraction form
    61,883.38/85,391.96 = 34,655.66/x
  3. Step 3: Cross multiply
    61,883.38x = 85,391.96 × 34,655.66
  4. Step 4: Simplify right side
    61,883.38x = 2,959,314,559.22
  5. Step 5: Solve for x
    x = 2,959,314,559.22/61,883.38
  6. Step 6: Final answer
    x = 47,820.83

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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.