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Finding the Fourth Proportional to 67,661.86, 93,350.61 and 39,344.26

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Solution

The fourth proportional to 67,661.86, 93,350.61 and 39,344.26 is: 54,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.86 : 93,350.61 = 39,344.26 : x
  2. Step 2: Convert to fraction form
    67,661.86/93,350.61 = 39,344.26/x
  3. Step 3: Cross multiply
    67,661.86x = 93,350.61 × 39,344.26
  4. Step 4: Simplify right side
    67,661.86x = 3,672,810,671.00
  5. Step 5: Solve for x
    x = 3,672,810,671.00/67,661.86
  6. Step 6: Final answer
    x = 54,281.85

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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.