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Finding the Fourth Proportional to 52,165.80, 71,988.84 and 28,292.40

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Solution

The fourth proportional to 52,165.80, 71,988.84 and 28,292.40 is: 39,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,165.80 : 71,988.84 = 28,292.40 : x
  2. Step 2: Convert to fraction form
    52,165.80/71,988.84 = 28,292.40/x
  3. Step 3: Cross multiply
    52,165.80x = 71,988.84 × 28,292.40
  4. Step 4: Simplify right side
    52,165.80x = 2,036,737,056.82
  5. Step 5: Solve for x
    x = 2,036,737,056.82/52,165.80
  6. Step 6: Final answer
    x = 39,043.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.