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Finding the Fourth Proportional to 65,232.60, 97,856.10 and 20,851.80

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Solution

The fourth proportional to 65,232.60, 97,856.10 and 20,851.80 is: 31,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,232.60 : 97,856.10 = 20,851.80 : x
  2. Step 2: Convert to fraction form
    65,232.60/97,856.10 = 20,851.80/x
  3. Step 3: Cross multiply
    65,232.60x = 97,856.10 × 20,851.80
  4. Step 4: Simplify right side
    65,232.60x = 2,040,475,825.98
  5. Step 5: Solve for x
    x = 2,040,475,825.98/65,232.60
  6. Step 6: Final answer
    x = 31,280.00

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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.