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Finding the Fourth Proportional to 22,407.20, 33,610.80 and 14,522.40

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Solution

The fourth proportional to 22,407.20, 33,610.80 and 14,522.40 is: 21,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.20 : 33,610.80 = 14,522.40 : x
  2. Step 2: Convert to fraction form
    22,407.20/33,610.80 = 14,522.40/x
  3. Step 3: Cross multiply
    22,407.20x = 33,610.80 × 14,522.40
  4. Step 4: Simplify right side
    22,407.20x = 488,109,481.92
  5. Step 5: Solve for x
    x = 488,109,481.92/22,407.20
  6. Step 6: Final answer
    x = 21,783.60

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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.