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Finding the Fourth Proportional to 22,225.80, 33,293.90 and 13,880.20

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Solution

The fourth proportional to 22,225.80, 33,293.90 and 13,880.20 is: 20,792.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,225.80 : 33,293.90 = 13,880.20 : x
  2. Step 2: Convert to fraction form
    22,225.80/33,293.90 = 13,880.20/x
  3. Step 3: Cross multiply
    22,225.80x = 33,293.90 × 13,880.20
  4. Step 4: Simplify right side
    22,225.80x = 462,125,990.78
  5. Step 5: Solve for x
    x = 462,125,990.78/22,225.80
  6. Step 6: Final answer
    x = 20,792.32

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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.