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Finding the Fourth Proportional to 62,840.06, 86,719.30 and 35,991.48

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Solution

The fourth proportional to 62,840.06, 86,719.30 and 35,991.48 is: 49,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,840.06 : 86,719.30 = 35,991.48 : x
  2. Step 2: Convert to fraction form
    62,840.06/86,719.30 = 35,991.48/x
  3. Step 3: Cross multiply
    62,840.06x = 86,719.30 × 35,991.48
  4. Step 4: Simplify right side
    62,840.06x = 3,121,155,951.56
  5. Step 5: Solve for x
    x = 3,121,155,951.56/62,840.06
  6. Step 6: Final answer
    x = 49,668.25

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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.