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Finding the Fourth Proportional to 86,609.58, 129,922.87 and 35,998.14

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Solution

The fourth proportional to 86,609.58, 129,922.87 and 35,998.14 is: 54,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,609.58 : 129,922.87 = 35,998.14 : x
  2. Step 2: Convert to fraction form
    86,609.58/129,922.87 = 35,998.14/x
  3. Step 3: Cross multiply
    86,609.58x = 129,922.87 × 35,998.14
  4. Step 4: Simplify right side
    86,609.58x = 4,676,981,663.46
  5. Step 5: Solve for x
    x = 4,676,981,663.46/86,609.58
  6. Step 6: Final answer
    x = 54,000.74

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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.