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Finding the Fourth Proportional to 86,059.91, 129,089.97 and 26,895.89

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Solution

The fourth proportional to 86,059.91, 129,089.97 and 26,895.89 is: 40,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,059.91 : 129,089.97 = 26,895.89 : x
  2. Step 2: Convert to fraction form
    86,059.91/129,089.97 = 26,895.89/x
  3. Step 3: Cross multiply
    86,059.91x = 129,089.97 × 26,895.89
  4. Step 4: Simplify right side
    86,059.91x = 3,471,989,955.95
  5. Step 5: Solve for x
    x = 3,471,989,955.95/86,059.91
  6. Step 6: Final answer
    x = 40,343.87

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Similar ratio
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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.