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Finding the Fourth Proportional to 13,294.88, 18,346.11 and 7,326.22

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Solution

The fourth proportional to 13,294.88, 18,346.11 and 7,326.22 is: 10,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.88 : 18,346.11 = 7,326.22 : x
  2. Step 2: Convert to fraction form
    13,294.88/18,346.11 = 7,326.22/x
  3. Step 3: Cross multiply
    13,294.88x = 18,346.11 × 7,326.22
  4. Step 4: Simplify right side
    13,294.88x = 134,407,638.00
  5. Step 5: Solve for x
    x = 134,407,638.00/13,294.88
  6. Step 6: Final answer
    x = 10,109.73

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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.