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Finding the Fourth Proportional to 13,167.46, 18,169.06 and 7,501.49

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Solution

The fourth proportional to 13,167.46, 18,169.06 and 7,501.49 is: 10,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.46 : 18,169.06 = 7,501.49 : x
  2. Step 2: Convert to fraction form
    13,167.46/18,169.06 = 7,501.49/x
  3. Step 3: Cross multiply
    13,167.46x = 18,169.06 × 7,501.49
  4. Step 4: Simplify right side
    13,167.46x = 136,295,021.90
  5. Step 5: Solve for x
    x = 136,295,021.90/13,167.46
  6. Step 6: Final answer
    x = 10,350.90

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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.