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Finding the Fourth Proportional to 65,643.80, 98,460.90 and 25,655.27

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Solution

The fourth proportional to 65,643.80, 98,460.90 and 25,655.27 is: 38,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,643.80 : 98,460.90 = 25,655.27 : x
  2. Step 2: Convert to fraction form
    65,643.80/98,460.90 = 25,655.27/x
  3. Step 3: Cross multiply
    65,643.80x = 98,460.90 × 25,655.27
  4. Step 4: Simplify right side
    65,643.80x = 2,526,040,481.64
  5. Step 5: Solve for x
    x = 2,526,040,481.64/65,643.80
  6. Step 6: Final answer
    x = 38,481.02

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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.