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Finding the Fourth Proportional to 86,010.65, 129,066.24 and 36,086.40

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Solution

The fourth proportional to 86,010.65, 129,066.24 and 36,086.40 is: 54,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,010.65 : 129,066.24 = 36,086.40 : x
  2. Step 2: Convert to fraction form
    86,010.65/129,066.24 = 36,086.40/x
  3. Step 3: Cross multiply
    86,010.65x = 129,066.24 × 36,086.40
  4. Step 4: Simplify right side
    86,010.65x = 4,657,535,963.14
  5. Step 5: Solve for x
    x = 4,657,535,963.14/86,010.65
  6. Step 6: Final answer
    x = 54,150.69

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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.