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Finding the Fourth Proportional to 67,705.38, 93,335.49 and 47,499.66

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Solution

The fourth proportional to 67,705.38, 93,335.49 and 47,499.66 is: 65,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,705.38 : 93,335.49 = 47,499.66 : x
  2. Step 2: Convert to fraction form
    67,705.38/93,335.49 = 47,499.66/x
  3. Step 3: Cross multiply
    67,705.38x = 93,335.49 × 47,499.66
  4. Step 4: Simplify right side
    67,705.38x = 4,433,404,040.93
  5. Step 5: Solve for x
    x = 4,433,404,040.93/67,705.38
  6. Step 6: Final answer
    x = 65,480.82

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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.