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Finding the Fourth Proportional to 65,404.80, 98,080.32 and 25,956.48

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Solution

The fourth proportional to 65,404.80, 98,080.32 and 25,956.48 is: 38,924.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,404.80 : 98,080.32 = 25,956.48 : x
  2. Step 2: Convert to fraction form
    65,404.80/98,080.32 = 25,956.48/x
  3. Step 3: Cross multiply
    65,404.80x = 98,080.32 × 25,956.48
  4. Step 4: Simplify right side
    65,404.80x = 2,545,819,864.47
  5. Step 5: Solve for x
    x = 2,545,819,864.47/65,404.80
  6. Step 6: Final answer
    x = 38,924.05

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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.