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Finding the Fourth Proportional to 62,744.81, 86,628.35 and 38,896.97

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Solution

The fourth proportional to 62,744.81, 86,628.35 and 38,896.97 is: 53,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,744.81 : 86,628.35 = 38,896.97 : x
  2. Step 2: Convert to fraction form
    62,744.81/86,628.35 = 38,896.97/x
  3. Step 3: Cross multiply
    62,744.81x = 86,628.35 × 38,896.97
  4. Step 4: Simplify right side
    62,744.81x = 3,369,579,995.20
  5. Step 5: Solve for x
    x = 3,369,579,995.20/62,744.81
  6. Step 6: Final answer
    x = 53,702.93

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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.