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Finding the Fourth Proportional to 65,115.20, 97,672.80 and 23,556.80

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Solution

The fourth proportional to 65,115.20, 97,672.80 and 23,556.80 is: 35,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,115.20 : 97,672.80 = 23,556.80 : x
  2. Step 2: Convert to fraction form
    65,115.20/97,672.80 = 23,556.80/x
  3. Step 3: Cross multiply
    65,115.20x = 97,672.80 × 23,556.80
  4. Step 4: Simplify right side
    65,115.20x = 2,300,858,615.04
  5. Step 5: Solve for x
    x = 2,300,858,615.04/65,115.20
  6. Step 6: Final answer
    x = 35,335.20

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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.