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Finding the Fourth Proportional to 22,275.40, 33,402.30 and 12,404.20

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Solution

The fourth proportional to 22,275.40, 33,402.30 and 12,404.20 is: 18,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.40 : 33,402.30 = 12,404.20 : x
  2. Step 2: Convert to fraction form
    22,275.40/33,402.30 = 12,404.20/x
  3. Step 3: Cross multiply
    22,275.40x = 33,402.30 × 12,404.20
  4. Step 4: Simplify right side
    22,275.40x = 414,328,809.66
  5. Step 5: Solve for x
    x = 414,328,809.66/22,275.40
  6. Step 6: Final answer
    x = 18,600.29

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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.