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Finding the Fourth Proportional to 61,963.91, 85,517.95 and 35,115.07

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Solution

The fourth proportional to 61,963.91, 85,517.95 and 35,115.07 is: 48,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.91 : 85,517.95 = 35,115.07 : x
  2. Step 2: Convert to fraction form
    61,963.91/85,517.95 = 35,115.07/x
  3. Step 3: Cross multiply
    61,963.91x = 85,517.95 × 35,115.07
  4. Step 4: Simplify right side
    61,963.91x = 3,002,968,197.34
  5. Step 5: Solve for x
    x = 3,002,968,197.34/61,963.91
  6. Step 6: Final answer
    x = 48,463.18

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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.