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Finding the Fourth Proportional to 65,993.60, 98,856.36 and 52,689.08

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Solution

The fourth proportional to 65,993.60, 98,856.36 and 52,689.08 is: 78,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,993.60 : 98,856.36 = 52,689.08 : x
  2. Step 2: Convert to fraction form
    65,993.60/98,856.36 = 52,689.08/x
  3. Step 3: Cross multiply
    65,993.60x = 98,856.36 × 52,689.08
  4. Step 4: Simplify right side
    65,993.60x = 5,208,650,660.55
  5. Step 5: Solve for x
    x = 5,208,650,660.55/65,993.60
  6. Step 6: Final answer
    x = 78,926.60

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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.