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Finding the Fourth Proportional to 32,545.58, 48,818.64 and 21,310.40

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Solution

The fourth proportional to 32,545.58, 48,818.64 and 21,310.40 is: 31,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,545.58 : 48,818.64 = 21,310.40 : x
  2. Step 2: Convert to fraction form
    32,545.58/48,818.64 = 21,310.40/x
  3. Step 3: Cross multiply
    32,545.58x = 48,818.64 × 21,310.40
  4. Step 4: Simplify right side
    32,545.58x = 1,040,344,745.86
  5. Step 5: Solve for x
    x = 1,040,344,745.86/32,545.58
  6. Step 6: Final answer
    x = 31,965.78

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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.