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Finding the Fourth Proportional to 62,976.74, 86,906.86 and 34,685.06

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Solution

The fourth proportional to 62,976.74, 86,906.86 and 34,685.06 is: 47,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,976.74 : 86,906.86 = 34,685.06 : x
  2. Step 2: Convert to fraction form
    62,976.74/86,906.86 = 34,685.06/x
  3. Step 3: Cross multiply
    62,976.74x = 86,906.86 × 34,685.06
  4. Step 4: Simplify right side
    62,976.74x = 3,014,369,132.26
  5. Step 5: Solve for x
    x = 3,014,369,132.26/62,976.74
  6. Step 6: Final answer
    x = 47,864.80

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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.