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Finding the Fourth Proportional to 25,905.20, 38,863.20 and 14,802.80

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Solution

The fourth proportional to 25,905.20, 38,863.20 and 14,802.80 is: 22,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.20 : 38,863.20 = 14,802.80 : x
  2. Step 2: Convert to fraction form
    25,905.20/38,863.20 = 14,802.80/x
  3. Step 3: Cross multiply
    25,905.20x = 38,863.20 × 14,802.80
  4. Step 4: Simplify right side
    25,905.20x = 575,284,176.96
  5. Step 5: Solve for x
    x = 575,284,176.96/25,905.20
  6. Step 6: Final answer
    x = 22,207.29

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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.