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Finding the Fourth Proportional to 70,982.50, 106,491.75 and 26,609.38

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Solution

The fourth proportional to 70,982.50, 106,491.75 and 26,609.38 is: 39,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,982.50 : 106,491.75 = 26,609.38 : x
  2. Step 2: Convert to fraction form
    70,982.50/106,491.75 = 26,609.38/x
  3. Step 3: Cross multiply
    70,982.50x = 106,491.75 × 26,609.38
  4. Step 4: Simplify right side
    70,982.50x = 2,833,679,442.62
  5. Step 5: Solve for x
    x = 2,833,679,442.62/70,982.50
  6. Step 6: Final answer
    x = 39,920.82

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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.