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Finding the Fourth Proportional to 65,969.59, 98,916.90 and 25,966.90

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Solution

The fourth proportional to 65,969.59, 98,916.90 and 25,966.90 is: 38,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.59 : 98,916.90 = 25,966.90 : x
  2. Step 2: Convert to fraction form
    65,969.59/98,916.90 = 25,966.90/x
  3. Step 3: Cross multiply
    65,969.59x = 98,916.90 × 25,966.90
  4. Step 4: Simplify right side
    65,969.59x = 2,568,564,834.08
  5. Step 5: Solve for x
    x = 2,568,564,834.08/65,969.59
  6. Step 6: Final answer
    x = 38,935.59

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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.