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Finding the Fourth Proportional to 27,428.58, 41,144.31 and 8,710.11

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Solution

The fourth proportional to 27,428.58, 41,144.31 and 8,710.11 is: 13,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.58 : 41,144.31 = 8,710.11 : x
  2. Step 2: Convert to fraction form
    27,428.58/41,144.31 = 8,710.11/x
  3. Step 3: Cross multiply
    27,428.58x = 41,144.31 × 8,710.11
  4. Step 4: Simplify right side
    27,428.58x = 358,371,465.97
  5. Step 5: Solve for x
    x = 358,371,465.97/27,428.58
  6. Step 6: Final answer
    x = 13,065.62

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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.