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Finding the Fourth Proportional to 52,759.80, 78,985.98 and 27,740.52

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Solution

The fourth proportional to 52,759.80, 78,985.98 and 27,740.52 is: 41,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.80 : 78,985.98 = 27,740.52 : x
  2. Step 2: Convert to fraction form
    52,759.80/78,985.98 = 27,740.52/x
  3. Step 3: Cross multiply
    52,759.80x = 78,985.98 × 27,740.52
  4. Step 4: Simplify right side
    52,759.80x = 2,191,112,157.91
  5. Step 5: Solve for x
    x = 2,191,112,157.91/52,759.80
  6. Step 6: Final answer
    x = 41,529.96

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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.