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Finding the Fourth Proportional to 13,058.48, 18,021.08 and 7,393.11

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Solution

The fourth proportional to 13,058.48, 18,021.08 and 7,393.11 is: 10,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.48 : 18,021.08 = 7,393.11 : x
  2. Step 2: Convert to fraction form
    13,058.48/18,021.08 = 7,393.11/x
  3. Step 3: Cross multiply
    13,058.48x = 18,021.08 × 7,393.11
  4. Step 4: Simplify right side
    13,058.48x = 133,231,777.66
  5. Step 5: Solve for x
    x = 133,231,777.66/13,058.48
  6. Step 6: Final answer
    x = 10,202.70

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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.