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Finding the Fourth Proportional to 65,701.80, 98,487.90 and 26,206.20

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Solution

The fourth proportional to 65,701.80, 98,487.90 and 26,206.20 is: 39,283.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,701.80 : 98,487.90 = 26,206.20 : x
  2. Step 2: Convert to fraction form
    65,701.80/98,487.90 = 26,206.20/x
  3. Step 3: Cross multiply
    65,701.80x = 98,487.90 × 26,206.20
  4. Step 4: Simplify right side
    65,701.80x = 2,580,993,604.98
  5. Step 5: Solve for x
    x = 2,580,993,604.98/65,701.80
  6. Step 6: Final answer
    x = 39,283.45

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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.