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Finding the Fourth Proportional to 24,331.70, 33,579.70 and 13,722.32

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Solution

The fourth proportional to 24,331.70, 33,579.70 and 13,722.32 is: 18,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,331.70 : 33,579.70 = 13,722.32 : x
  2. Step 2: Convert to fraction form
    24,331.70/33,579.70 = 13,722.32/x
  3. Step 3: Cross multiply
    24,331.70x = 33,579.70 × 13,722.32
  4. Step 4: Simplify right side
    24,331.70x = 460,791,388.90
  5. Step 5: Solve for x
    x = 460,791,388.90/24,331.70
  6. Step 6: Final answer
    x = 18,937.90

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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.