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Finding the Fourth Proportional to 86,568.70, 129,853.05 and 36,632.20

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Solution

The fourth proportional to 86,568.70, 129,853.05 and 36,632.20 is: 54,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.70 : 129,853.05 = 36,632.20 : x
  2. Step 2: Convert to fraction form
    86,568.70/129,853.05 = 36,632.20/x
  3. Step 3: Cross multiply
    86,568.70x = 129,853.05 × 36,632.20
  4. Step 4: Simplify right side
    86,568.70x = 4,756,802,898.21
  5. Step 5: Solve for x
    x = 4,756,802,898.21/86,568.70
  6. Step 6: Final answer
    x = 54,948.30

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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.