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Finding the Fourth Proportional to 62,447.36, 86,160 and 37,287.68

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Solution

The fourth proportional to 62,447.36, 86,160 and 37,287.68 is: 51,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,447.36 : 86,160 = 37,287.68 : x
  2. Step 2: Convert to fraction form
    62,447.36/86,160 = 37,287.68/x
  3. Step 3: Cross multiply
    62,447.36x = 86,160 × 37,287.68
  4. Step 4: Simplify right side
    62,447.36x = 3,212,706,508.80
  5. Step 5: Solve for x
    x = 3,212,706,508.80/62,447.36
  6. Step 6: Final answer
    x = 51,446.63

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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.