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Finding the Fourth Proportional to 38,689.71, 58,041.85 and 27,568.81

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Solution

The fourth proportional to 38,689.71, 58,041.85 and 27,568.81 is: 41,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.71 : 58,041.85 = 27,568.81 : x
  2. Step 2: Convert to fraction form
    38,689.71/58,041.85 = 27,568.81/x
  3. Step 3: Cross multiply
    38,689.71x = 58,041.85 × 27,568.81
  4. Step 4: Simplify right side
    38,689.71x = 1,600,144,734.70
  5. Step 5: Solve for x
    x = 1,600,144,734.70/38,689.71
  6. Step 6: Final answer
    x = 41,358.41

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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.