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Finding the Fourth Proportional to 22,805.80, 31,463.05 and 13,244.05

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Solution

The fourth proportional to 22,805.80, 31,463.05 and 13,244.05 is: 18,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,805.80 : 31,463.05 = 13,244.05 : x
  2. Step 2: Convert to fraction form
    22,805.80/31,463.05 = 13,244.05/x
  3. Step 3: Cross multiply
    22,805.80x = 31,463.05 × 13,244.05
  4. Step 4: Simplify right side
    22,805.80x = 416,698,207.35
  5. Step 5: Solve for x
    x = 416,698,207.35/22,805.80
  6. Step 6: Final answer
    x = 18,271.59

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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.