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Finding the Fourth Proportional to 86,201.70, 129,302.69 and 27,041.91

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Solution

The fourth proportional to 86,201.70, 129,302.69 and 27,041.91 is: 40,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,201.70 : 129,302.69 = 27,041.91 : x
  2. Step 2: Convert to fraction form
    86,201.70/129,302.69 = 27,041.91/x
  3. Step 3: Cross multiply
    86,201.70x = 129,302.69 × 27,041.91
  4. Step 4: Simplify right side
    86,201.70x = 3,496,591,570.53
  5. Step 5: Solve for x
    x = 3,496,591,570.53/86,201.70
  6. Step 6: Final answer
    x = 40,562.91

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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.