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Finding the Fourth Proportional to 65,353.40, 98,062.53 and 25,909.64

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Solution

The fourth proportional to 65,353.40, 98,062.53 and 25,909.64 is: 38,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,353.40 : 98,062.53 = 25,909.64 : x
  2. Step 2: Convert to fraction form
    65,353.40/98,062.53 = 25,909.64/x
  3. Step 3: Cross multiply
    65,353.40x = 98,062.53 × 25,909.64
  4. Step 4: Simplify right side
    65,353.40x = 2,540,764,849.79
  5. Step 5: Solve for x
    x = 2,540,764,849.79/65,353.40
  6. Step 6: Final answer
    x = 38,877.32

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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.