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Finding the Fourth Proportional to 83,753.44, 125,630.16 and 39,347.60

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Solution

The fourth proportional to 83,753.44, 125,630.16 and 39,347.60 is: 59,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,753.44 : 125,630.16 = 39,347.60 : x
  2. Step 2: Convert to fraction form
    83,753.44/125,630.16 = 39,347.60/x
  3. Step 3: Cross multiply
    83,753.44x = 125,630.16 × 39,347.60
  4. Step 4: Simplify right side
    83,753.44x = 4,943,245,283.62
  5. Step 5: Solve for x
    x = 4,943,245,283.62/83,753.44
  6. Step 6: Final answer
    x = 59,021.40

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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.