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Finding the Fourth Proportional to 59,703.12, 89,578.89 and 38,379.66

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Solution

The fourth proportional to 59,703.12, 89,578.89 and 38,379.66 is: 57,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,703.12 : 89,578.89 = 38,379.66 : x
  2. Step 2: Convert to fraction form
    59,703.12/89,578.89 = 38,379.66/x
  3. Step 3: Cross multiply
    59,703.12x = 89,578.89 × 38,379.66
  4. Step 4: Simplify right side
    59,703.12x = 3,438,007,341.38
  5. Step 5: Solve for x
    x = 3,438,007,341.38/59,703.12
  6. Step 6: Final answer
    x = 57,585.05

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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.