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Finding the Fourth Proportional to 22,259.48, 30,708.28 and 13,302.48

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Solution

The fourth proportional to 22,259.48, 30,708.28 and 13,302.48 is: 18,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,259.48 : 30,708.28 = 13,302.48 : x
  2. Step 2: Convert to fraction form
    22,259.48/30,708.28 = 13,302.48/x
  3. Step 3: Cross multiply
    22,259.48x = 30,708.28 × 13,302.48
  4. Step 4: Simplify right side
    22,259.48x = 408,496,280.53
  5. Step 5: Solve for x
    x = 408,496,280.53/22,259.48
  6. Step 6: Final answer
    x = 18,351.56

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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.