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Finding the Fourth Proportional to 13,241.80, 19,862.70 and 11,744.20

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Solution

The fourth proportional to 13,241.80, 19,862.70 and 11,744.20 is: 17,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.80 : 19,862.70 = 11,744.20 : x
  2. Step 2: Convert to fraction form
    13,241.80/19,862.70 = 11,744.20/x
  3. Step 3: Cross multiply
    13,241.80x = 19,862.70 × 11,744.20
  4. Step 4: Simplify right side
    13,241.80x = 233,271,521.34
  5. Step 5: Solve for x
    x = 233,271,521.34/13,241.80
  6. Step 6: Final answer
    x = 17,616.30

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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.