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Finding the Fourth Proportional to 13,041.26, 17,999.78 and 8,008.12

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Solution

The fourth proportional to 13,041.26, 17,999.78 and 8,008.12 is: 11,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.26 : 17,999.78 = 8,008.12 : x
  2. Step 2: Convert to fraction form
    13,041.26/17,999.78 = 8,008.12/x
  3. Step 3: Cross multiply
    13,041.26x = 17,999.78 × 8,008.12
  4. Step 4: Simplify right side
    13,041.26x = 144,144,313.17
  5. Step 5: Solve for x
    x = 144,144,313.17/13,041.26
  6. Step 6: Final answer
    x = 11,052.95

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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.