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Finding the Fourth Proportional to 7,058.24, 9,740.13 and 3,914.36

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Solution

The fourth proportional to 7,058.24, 9,740.13 and 3,914.36 is: 5,401.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.24 : 9,740.13 = 3,914.36 : x
  2. Step 2: Convert to fraction form
    7,058.24/9,740.13 = 3,914.36/x
  3. Step 3: Cross multiply
    7,058.24x = 9,740.13 × 3,914.36
  4. Step 4: Simplify right side
    7,058.24x = 38,126,375.27
  5. Step 5: Solve for x
    x = 38,126,375.27/7,058.24
  6. Step 6: Final answer
    x = 5,401.68

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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.