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Finding the Fourth Proportional to 86,673.84, 129,788.82 and 59,982.88

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Solution

The fourth proportional to 86,673.84, 129,788.82 and 59,982.88 is: 89,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.84 : 129,788.82 = 59,982.88 : x
  2. Step 2: Convert to fraction form
    86,673.84/129,788.82 = 59,982.88/x
  3. Step 3: Cross multiply
    86,673.84x = 129,788.82 × 59,982.88
  4. Step 4: Simplify right side
    86,673.84x = 7,785,107,215.40
  5. Step 5: Solve for x
    x = 7,785,107,215.40/86,673.84
  6. Step 6: Final answer
    x = 89,820.73

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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.