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Finding the Fourth Proportional to 62,782.98, 86,640.12 and 37,632.48

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Solution

The fourth proportional to 62,782.98, 86,640.12 and 37,632.48 is: 51,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,782.98 : 86,640.12 = 37,632.48 : x
  2. Step 2: Convert to fraction form
    62,782.98/86,640.12 = 37,632.48/x
  3. Step 3: Cross multiply
    62,782.98x = 86,640.12 × 37,632.48
  4. Step 4: Simplify right side
    62,782.98x = 3,260,482,583.10
  5. Step 5: Solve for x
    x = 3,260,482,583.10/62,782.98
  6. Step 6: Final answer
    x = 51,932.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.