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Finding the Fourth Proportional to 39,099.87, 58,649.87 and 9,517.72

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Solution

The fourth proportional to 39,099.87, 58,649.87 and 9,517.72 is: 14,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,099.87 : 58,649.87 = 9,517.72 : x
  2. Step 2: Convert to fraction form
    39,099.87/58,649.87 = 9,517.72/x
  3. Step 3: Cross multiply
    39,099.87x = 58,649.87 × 9,517.72
  4. Step 4: Simplify right side
    39,099.87x = 558,213,040.70
  5. Step 5: Solve for x
    x = 558,213,040.70/39,099.87
  6. Step 6: Final answer
    x = 14,276.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.