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Finding the Fourth Proportional to 86,535.59, 129,810.67 and 27,369.95

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Solution

The fourth proportional to 86,535.59, 129,810.67 and 27,369.95 is: 41,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,535.59 : 129,810.67 = 27,369.95 : x
  2. Step 2: Convert to fraction form
    86,535.59/129,810.67 = 27,369.95/x
  3. Step 3: Cross multiply
    86,535.59x = 129,810.67 × 27,369.95
  4. Step 4: Simplify right side
    86,535.59x = 3,552,910,829.89
  5. Step 5: Solve for x
    x = 3,552,910,829.89/86,535.59
  6. Step 6: Final answer
    x = 41,057.22

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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.