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Finding the Fourth Proportional to 56,581.48, 84,870.78 and 27,020.20

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Solution

The fourth proportional to 56,581.48, 84,870.78 and 27,020.20 is: 40,529.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,581.48 : 84,870.78 = 27,020.20 : x
  2. Step 2: Convert to fraction form
    56,581.48/84,870.78 = 27,020.20/x
  3. Step 3: Cross multiply
    56,581.48x = 84,870.78 × 27,020.20
  4. Step 4: Simplify right side
    56,581.48x = 2,293,225,449.76
  5. Step 5: Solve for x
    x = 2,293,225,449.76/56,581.48
  6. Step 6: Final answer
    x = 40,529.61

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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.