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Finding the Fourth Proportional to 39,321.80, 59,097.90 and 38,630.60

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Solution

The fourth proportional to 39,321.80, 59,097.90 and 38,630.60 is: 58,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.80 : 59,097.90 = 38,630.60 : x
  2. Step 2: Convert to fraction form
    39,321.80/59,097.90 = 38,630.60/x
  3. Step 3: Cross multiply
    39,321.80x = 59,097.90 × 38,630.60
  4. Step 4: Simplify right side
    39,321.80x = 2,282,987,335.74
  5. Step 5: Solve for x
    x = 2,282,987,335.74/39,321.80
  6. Step 6: Final answer
    x = 58,059.08

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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.