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Finding the Fourth Proportional to 22,540.80, 33,746.40 and 13,792.80

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Solution

The fourth proportional to 22,540.80, 33,746.40 and 13,792.80 is: 20,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.80 : 33,746.40 = 13,792.80 : x
  2. Step 2: Convert to fraction form
    22,540.80/33,746.40 = 13,792.80/x
  3. Step 3: Cross multiply
    22,540.80x = 33,746.40 × 13,792.80
  4. Step 4: Simplify right side
    22,540.80x = 465,457,345.92
  5. Step 5: Solve for x
    x = 465,457,345.92/22,540.80
  6. Step 6: Final answer
    x = 20,649.55

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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.