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Finding the Fourth Proportional to 65,952.63, 98,949.90 and 21,569.29

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Solution

The fourth proportional to 65,952.63, 98,949.90 and 21,569.29 is: 32,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,952.63 : 98,949.90 = 21,569.29 : x
  2. Step 2: Convert to fraction form
    65,952.63/98,949.90 = 21,569.29/x
  3. Step 3: Cross multiply
    65,952.63x = 98,949.90 × 21,569.29
  4. Step 4: Simplify right side
    65,952.63x = 2,134,278,922.08
  5. Step 5: Solve for x
    x = 2,134,278,922.08/65,952.63
  6. Step 6: Final answer
    x = 32,360.79

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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.