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Finding the Fourth Proportional to 39,952.71, 55,133.19 and 22,047.39

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Solution

The fourth proportional to 39,952.71, 55,133.19 and 22,047.39 is: 30,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,952.71 : 55,133.19 = 22,047.39 : x
  2. Step 2: Convert to fraction form
    39,952.71/55,133.19 = 22,047.39/x
  3. Step 3: Cross multiply
    39,952.71x = 55,133.19 × 22,047.39
  4. Step 4: Simplify right side
    39,952.71x = 1,215,542,941.87
  5. Step 5: Solve for x
    x = 1,215,542,941.87/39,952.71
  6. Step 6: Final answer
    x = 30,424.54

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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.