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Finding the Fourth Proportional to 56,264.40, 84,385.80 and 16,822.80

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Solution

The fourth proportional to 56,264.40, 84,385.80 and 16,822.80 is: 25,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,264.40 : 84,385.80 = 16,822.80 : x
  2. Step 2: Convert to fraction form
    56,264.40/84,385.80 = 16,822.80/x
  3. Step 3: Cross multiply
    56,264.40x = 84,385.80 × 16,822.80
  4. Step 4: Simplify right side
    56,264.40x = 1,419,605,436.24
  5. Step 5: Solve for x
    x = 1,419,605,436.24/56,264.40
  6. Step 6: Final answer
    x = 25,230.97

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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.