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Finding the Fourth Proportional to 22,827.80, 34,241.70 and 20,322.20

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Solution

The fourth proportional to 22,827.80, 34,241.70 and 20,322.20 is: 30,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,827.80 : 34,241.70 = 20,322.20 : x
  2. Step 2: Convert to fraction form
    22,827.80/34,241.70 = 20,322.20/x
  3. Step 3: Cross multiply
    22,827.80x = 34,241.70 × 20,322.20
  4. Step 4: Simplify right side
    22,827.80x = 695,866,675.74
  5. Step 5: Solve for x
    x = 695,866,675.74/22,827.80
  6. Step 6: Final answer
    x = 30,483.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.