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Finding the Fourth Proportional to 58,920.84, 88,382.38 and 19,481.40

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Solution

The fourth proportional to 58,920.84, 88,382.38 and 19,481.40 is: 29,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,920.84 : 88,382.38 = 19,481.40 : x
  2. Step 2: Convert to fraction form
    58,920.84/88,382.38 = 19,481.40/x
  3. Step 3: Cross multiply
    58,920.84x = 88,382.38 × 19,481.40
  4. Step 4: Simplify right side
    58,920.84x = 1,721,812,497.73
  5. Step 5: Solve for x
    x = 1,721,812,497.73/58,920.84
  6. Step 6: Final answer
    x = 29,222.47

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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.