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Finding the Fourth Proportional to 13,168.68, 19,733.52 and 7,317.24

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Solution

The fourth proportional to 13,168.68, 19,733.52 and 7,317.24 is: 10,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.68 : 19,733.52 = 7,317.24 : x
  2. Step 2: Convert to fraction form
    13,168.68/19,733.52 = 7,317.24/x
  3. Step 3: Cross multiply
    13,168.68x = 19,733.52 × 7,317.24
  4. Step 4: Simplify right side
    13,168.68x = 144,394,901.88
  5. Step 5: Solve for x
    x = 144,394,901.88/13,168.68
  6. Step 6: Final answer
    x = 10,965.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.