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Finding the Fourth Proportional to 13,058.66, 18,020.69 and 7,394.48

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Solution

The fourth proportional to 13,058.66, 18,020.69 and 7,394.48 is: 10,204.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.66 : 18,020.69 = 7,394.48 : x
  2. Step 2: Convert to fraction form
    13,058.66/18,020.69 = 7,394.48/x
  3. Step 3: Cross multiply
    13,058.66x = 18,020.69 × 7,394.48
  4. Step 4: Simplify right side
    13,058.66x = 133,253,594.82
  5. Step 5: Solve for x
    x = 133,253,594.82/13,058.66
  6. Step 6: Final answer
    x = 10,204.23

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1.5x scale

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.