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Finding the Fourth Proportional to 19,419.12, 29,129 and 5,568.12

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Solution

The fourth proportional to 19,419.12, 29,129 and 5,568.12 is: 8,352.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.12 : 29,129 = 5,568.12 : x
  2. Step 2: Convert to fraction form
    19,419.12/29,129 = 5,568.12/x
  3. Step 3: Cross multiply
    19,419.12x = 29,129 × 5,568.12
  4. Step 4: Simplify right side
    19,419.12x = 162,193,767.48
  5. Step 5: Solve for x
    x = 162,193,767.48/19,419.12
  6. Step 6: Final answer
    x = 8,352.27

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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.