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Finding the Fourth Proportional to 61,920.58, 85,449.50 and 35,062.38

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Solution

The fourth proportional to 61,920.58, 85,449.50 and 35,062.38 is: 48,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.58 : 85,449.50 = 35,062.38 : x
  2. Step 2: Convert to fraction form
    61,920.58/85,449.50 = 35,062.38/x
  3. Step 3: Cross multiply
    61,920.58x = 85,449.50 × 35,062.38
  4. Step 4: Simplify right side
    61,920.58x = 2,996,062,839.81
  5. Step 5: Solve for x
    x = 2,996,062,839.81/61,920.58
  6. Step 6: Final answer
    x = 48,385.57

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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.