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Finding the Fourth Proportional to 65,898.80, 98,855.40 and 63,825.20

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Solution

The fourth proportional to 65,898.80, 98,855.40 and 63,825.20 is: 95,744.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,898.80 : 98,855.40 = 63,825.20 : x
  2. Step 2: Convert to fraction form
    65,898.80/98,855.40 = 63,825.20/x
  3. Step 3: Cross multiply
    65,898.80x = 98,855.40 × 63,825.20
  4. Step 4: Simplify right side
    65,898.80x = 6,309,465,676.08
  5. Step 5: Solve for x
    x = 6,309,465,676.08/65,898.80
  6. Step 6: Final answer
    x = 95,744.77

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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.