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Finding the Fourth Proportional to 62,613.47, 86,415.44 and 38,747.83

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Solution

The fourth proportional to 62,613.47, 86,415.44 and 38,747.83 is: 53,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,613.47 : 86,415.44 = 38,747.83 : x
  2. Step 2: Convert to fraction form
    62,613.47/86,415.44 = 38,747.83/x
  3. Step 3: Cross multiply
    62,613.47x = 86,415.44 × 38,747.83
  4. Step 4: Simplify right side
    62,613.47x = 3,348,410,778.50
  5. Step 5: Solve for x
    x = 3,348,410,778.50/62,613.47
  6. Step 6: Final answer
    x = 53,477.48

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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.