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Finding the Fourth Proportional to 64,551.20, 96,861.20 and 25,109.60

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Solution

The fourth proportional to 64,551.20, 96,861.20 and 25,109.60 is: 37,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,551.20 : 96,861.20 = 25,109.60 : x
  2. Step 2: Convert to fraction form
    64,551.20/96,861.20 = 25,109.60/x
  3. Step 3: Cross multiply
    64,551.20x = 96,861.20 × 25,109.60
  4. Step 4: Simplify right side
    64,551.20x = 2,432,145,987.52
  5. Step 5: Solve for x
    x = 2,432,145,987.52/64,551.20
  6. Step 6: Final answer
    x = 37,677.78

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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.