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Finding the Fourth Proportional to 86,187.40, 129,281.10 and 27,027.84

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Solution

The fourth proportional to 86,187.40, 129,281.10 and 27,027.84 is: 40,541.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,187.40 : 129,281.10 = 27,027.84 : x
  2. Step 2: Convert to fraction form
    86,187.40/129,281.10 = 27,027.84/x
  3. Step 3: Cross multiply
    86,187.40x = 129,281.10 × 27,027.84
  4. Step 4: Simplify right side
    86,187.40x = 3,494,188,885.82
  5. Step 5: Solve for x
    x = 3,494,188,885.82/86,187.40
  6. Step 6: Final answer
    x = 40,541.76

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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.