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Finding the Fourth Proportional to 62,668.56, 86,486.72 and 34,374.24

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Solution

The fourth proportional to 62,668.56, 86,486.72 and 34,374.24 is: 47,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,668.56 : 86,486.72 = 34,374.24 : x
  2. Step 2: Convert to fraction form
    62,668.56/86,486.72 = 34,374.24/x
  3. Step 3: Cross multiply
    62,668.56x = 86,486.72 × 34,374.24
  4. Step 4: Simplify right side
    62,668.56x = 2,972,915,270.09
  5. Step 5: Solve for x
    x = 2,972,915,270.09/62,668.56
  6. Step 6: Final answer
    x = 47,438.71

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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.