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Finding the Fourth Proportional to 19,241.96, 28,868.40 and 7,401.17

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Solution

The fourth proportional to 19,241.96, 28,868.40 and 7,401.17 is: 11,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.96 : 28,868.40 = 7,401.17 : x
  2. Step 2: Convert to fraction form
    19,241.96/28,868.40 = 7,401.17/x
  3. Step 3: Cross multiply
    19,241.96x = 28,868.40 × 7,401.17
  4. Step 4: Simplify right side
    19,241.96x = 213,660,008.20
  5. Step 5: Solve for x
    x = 213,660,008.20/19,241.96
  6. Step 6: Final answer
    x = 11,103.86

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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.