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Finding the Fourth Proportional to 53,787.87, 80,681.70 and 25,622.50

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Solution

The fourth proportional to 53,787.87, 80,681.70 and 25,622.50 is: 38,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,787.87 : 80,681.70 = 25,622.50 : x
  2. Step 2: Convert to fraction form
    53,787.87/80,681.70 = 25,622.50/x
  3. Step 3: Cross multiply
    53,787.87x = 80,681.70 × 25,622.50
  4. Step 4: Simplify right side
    53,787.87x = 2,067,266,914.64
  5. Step 5: Solve for x
    x = 2,067,266,914.64/53,787.87
  6. Step 6: Final answer
    x = 38,433.70

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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.