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Finding the Fourth Proportional to 22,291.79, 30,752.07 and 13,337.48

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Solution

The fourth proportional to 22,291.79, 30,752.07 and 13,337.48 is: 18,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.79 : 30,752.07 = 13,337.48 : x
  2. Step 2: Convert to fraction form
    22,291.79/30,752.07 = 13,337.48/x
  3. Step 3: Cross multiply
    22,291.79x = 30,752.07 × 13,337.48
  4. Step 4: Simplify right side
    22,291.79x = 410,155,145.45
  5. Step 5: Solve for x
    x = 410,155,145.45/22,291.79
  6. Step 6: Final answer
    x = 18,399.39

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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.