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Finding the Fourth Proportional to 22,253.85, 30,713.04 and 13,301.28

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Solution

The fourth proportional to 22,253.85, 30,713.04 and 13,301.28 is: 18,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,253.85 : 30,713.04 = 13,301.28 : x
  2. Step 2: Convert to fraction form
    22,253.85/30,713.04 = 13,301.28/x
  3. Step 3: Cross multiply
    22,253.85x = 30,713.04 × 13,301.28
  4. Step 4: Simplify right side
    22,253.85x = 408,522,744.69
  5. Step 5: Solve for x
    x = 408,522,744.69/22,253.85
  6. Step 6: Final answer
    x = 18,357.40

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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.