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Finding the Fourth Proportional to 65,913.88, 98,870.78 and 26,470.98

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Solution

The fourth proportional to 65,913.88, 98,870.78 and 26,470.98 is: 39,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,913.88 : 98,870.78 = 26,470.98 : x
  2. Step 2: Convert to fraction form
    65,913.88/98,870.78 = 26,470.98/x
  3. Step 3: Cross multiply
    65,913.88x = 98,870.78 × 26,470.98
  4. Step 4: Simplify right side
    65,913.88x = 2,617,206,439.96
  5. Step 5: Solve for x
    x = 2,617,206,439.96/65,913.88
  6. Step 6: Final answer
    x = 39,706.45

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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.