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Finding the Fourth Proportional to 57,805.40, 86,706.88 and 26,640.66

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Solution

The fourth proportional to 57,805.40, 86,706.88 and 26,640.66 is: 39,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.40 : 86,706.88 = 26,640.66 : x
  2. Step 2: Convert to fraction form
    57,805.40/86,706.88 = 26,640.66/x
  3. Step 3: Cross multiply
    57,805.40x = 86,706.88 × 26,640.66
  4. Step 4: Simplify right side
    57,805.40x = 2,309,928,509.74
  5. Step 5: Solve for x
    x = 2,309,928,509.74/57,805.40
  6. Step 6: Final answer
    x = 39,960.43

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1.5x scale

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.