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Finding the Fourth Proportional to 42,271.80, 58,335.06 and 23,408.91

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Solution

The fourth proportional to 42,271.80, 58,335.06 and 23,408.91 is: 32,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,271.80 : 58,335.06 = 23,408.91 : x
  2. Step 2: Convert to fraction form
    42,271.80/58,335.06 = 23,408.91/x
  3. Step 3: Cross multiply
    42,271.80x = 58,335.06 × 23,408.91
  4. Step 4: Simplify right side
    42,271.80x = 1,365,560,169.38
  5. Step 5: Solve for x
    x = 1,365,560,169.38/42,271.80
  6. Step 6: Final answer
    x = 32,304.28

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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.