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Finding the Fourth Proportional to 13,241.88, 19,875.78 and 6,321.24

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Solution

The fourth proportional to 13,241.88, 19,875.78 and 6,321.24 is: 9,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.88 : 19,875.78 = 6,321.24 : x
  2. Step 2: Convert to fraction form
    13,241.88/19,875.78 = 6,321.24/x
  3. Step 3: Cross multiply
    13,241.88x = 19,875.78 × 6,321.24
  4. Step 4: Simplify right side
    13,241.88x = 125,639,575.57
  5. Step 5: Solve for x
    x = 125,639,575.57/13,241.88
  6. Step 6: Final answer
    x = 9,488.05

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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.