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Finding the Fourth Proportional to 58,673.73, 88,019.79 and 21,229.86

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Solution

The fourth proportional to 58,673.73, 88,019.79 and 21,229.86 is: 31,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,673.73 : 88,019.79 = 21,229.86 : x
  2. Step 2: Convert to fraction form
    58,673.73/88,019.79 = 21,229.86/x
  3. Step 3: Cross multiply
    58,673.73x = 88,019.79 × 21,229.86
  4. Step 4: Simplify right side
    58,673.73x = 1,868,647,818.93
  5. Step 5: Solve for x
    x = 1,868,647,818.93/58,673.73
  6. Step 6: Final answer
    x = 31,848.12

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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.