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Finding the Fourth Proportional to 13,250.68, 18,276.68 and 11,247.42

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Solution

The fourth proportional to 13,250.68, 18,276.68 and 11,247.42 is: 15,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.68 : 18,276.68 = 11,247.42 : x
  2. Step 2: Convert to fraction form
    13,250.68/18,276.68 = 11,247.42/x
  3. Step 3: Cross multiply
    13,250.68x = 18,276.68 × 11,247.42
  4. Step 4: Simplify right side
    13,250.68x = 205,565,496.17
  5. Step 5: Solve for x
    x = 205,565,496.17/13,250.68
  6. Step 6: Final answer
    x = 15,513.58

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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.