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Finding the Fourth Proportional to 86,572.70, 129,846.90 and 27,414.35

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Solution

The fourth proportional to 86,572.70, 129,846.90 and 27,414.35 is: 41,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,572.70 : 129,846.90 = 27,414.35 : x
  2. Step 2: Convert to fraction form
    86,572.70/129,846.90 = 27,414.35/x
  3. Step 3: Cross multiply
    86,572.70x = 129,846.90 × 27,414.35
  4. Step 4: Simplify right side
    86,572.70x = 3,559,668,363.02
  5. Step 5: Solve for x
    x = 3,559,668,363.02/86,572.70
  6. Step 6: Final answer
    x = 41,117.68

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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.