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Finding the Fourth Proportional to 48,930, 67,529.16 and 29,058

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Solution

The fourth proportional to 48,930, 67,529.16 and 29,058 is: 40,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,930 : 67,529.16 = 29,058 : x
  2. Step 2: Convert to fraction form
    48,930/67,529.16 = 29,058/x
  3. Step 3: Cross multiply
    48,930x = 67,529.16 × 29,058
  4. Step 4: Simplify right side
    48,930x = 1,962,262,331.28
  5. Step 5: Solve for x
    x = 1,962,262,331.28/48,930
  6. Step 6: Final answer
    x = 40,103.46

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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.