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Finding the Fourth Proportional to 86,560.67, 129,864.90 and 36,614.45

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Solution

The fourth proportional to 86,560.67, 129,864.90 and 36,614.45 is: 54,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,560.67 : 129,864.90 = 36,614.45 : x
  2. Step 2: Convert to fraction form
    86,560.67/129,864.90 = 36,614.45/x
  3. Step 3: Cross multiply
    86,560.67x = 129,864.90 × 36,614.45
  4. Step 4: Simplify right side
    86,560.67x = 4,754,931,887.81
  5. Step 5: Solve for x
    x = 4,754,931,887.81/86,560.67
  6. Step 6: Final answer
    x = 54,931.78

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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.