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Finding the Fourth Proportional to 68,829.90, 103,241.13 and 22,079.13

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Solution

The fourth proportional to 68,829.90, 103,241.13 and 22,079.13 is: 33,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.90 : 103,241.13 = 22,079.13 : x
  2. Step 2: Convert to fraction form
    68,829.90/103,241.13 = 22,079.13/x
  3. Step 3: Cross multiply
    68,829.90x = 103,241.13 × 22,079.13
  4. Step 4: Simplify right side
    68,829.90x = 2,279,474,330.62
  5. Step 5: Solve for x
    x = 2,279,474,330.62/68,829.90
  6. Step 6: Final answer
    x = 33,117.50

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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.