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Finding the Fourth Proportional to 62,668.16, 86,493.12 and 37,188.57

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Solution

The fourth proportional to 62,668.16, 86,493.12 and 37,188.57 is: 51,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,668.16 : 86,493.12 = 37,188.57 : x
  2. Step 2: Convert to fraction form
    62,668.16/86,493.12 = 37,188.57/x
  3. Step 3: Cross multiply
    62,668.16x = 86,493.12 × 37,188.57
  4. Step 4: Simplify right side
    62,668.16x = 3,216,555,477.93
  5. Step 5: Solve for x
    x = 3,216,555,477.93/62,668.16
  6. Step 6: Final answer
    x = 51,326.79

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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.