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Finding the Fourth Proportional to 65,969.44, 98,966.52 and 21,598.60

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Solution

The fourth proportional to 65,969.44, 98,966.52 and 21,598.60 is: 32,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.44 : 98,966.52 = 21,598.60 : x
  2. Step 2: Convert to fraction form
    65,969.44/98,966.52 = 21,598.60/x
  3. Step 3: Cross multiply
    65,969.44x = 98,966.52 × 21,598.60
  4. Step 4: Simplify right side
    65,969.44x = 2,137,538,278.87
  5. Step 5: Solve for x
    x = 2,137,538,278.87/65,969.44
  6. Step 6: Final answer
    x = 32,401.95

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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.