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Finding the Fourth Proportional to 72,451.20, 108,676.80 and 22,534.45

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Solution

The fourth proportional to 72,451.20, 108,676.80 and 22,534.45 is: 33,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,451.20 : 108,676.80 = 22,534.45 : x
  2. Step 2: Convert to fraction form
    72,451.20/108,676.80 = 22,534.45/x
  3. Step 3: Cross multiply
    72,451.20x = 108,676.80 × 22,534.45
  4. Step 4: Simplify right side
    72,451.20x = 2,448,971,915.76
  5. Step 5: Solve for x
    x = 2,448,971,915.76/72,451.20
  6. Step 6: Final answer
    x = 33,801.68

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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.