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Finding the Fourth Proportional to 52,677.95, 78,897.65 and 40,747.86

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Solution

The fourth proportional to 52,677.95, 78,897.65 and 40,747.86 is: 61,029.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,677.95 : 78,897.65 = 40,747.86 : x
  2. Step 2: Convert to fraction form
    52,677.95/78,897.65 = 40,747.86/x
  3. Step 3: Cross multiply
    52,677.95x = 78,897.65 × 40,747.86
  4. Step 4: Simplify right side
    52,677.95x = 3,214,910,192.79
  5. Step 5: Solve for x
    x = 3,214,910,192.79/52,677.95
  6. Step 6: Final answer
    x = 61,029.53

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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.