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Finding the Fourth Proportional to 40,978, 56,549.46 and 23,073.04

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Solution

The fourth proportional to 40,978, 56,549.46 and 23,073.04 is: 31,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,978 : 56,549.46 = 23,073.04 : x
  2. Step 2: Convert to fraction form
    40,978/56,549.46 = 23,073.04/x
  3. Step 3: Cross multiply
    40,978x = 56,549.46 × 23,073.04
  4. Step 4: Simplify right side
    40,978x = 1,304,767,952.56
  5. Step 5: Solve for x
    x = 1,304,767,952.56/40,978
  6. Step 6: Final answer
    x = 31,840.69

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Why These Related Problems?

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