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Finding the Fourth Proportional to 39,384.92, 54,362.44 and 22,398.34

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Solution

The fourth proportional to 39,384.92, 54,362.44 and 22,398.34 is: 30,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,384.92 : 54,362.44 = 22,398.34 : x
  2. Step 2: Convert to fraction form
    39,384.92/54,362.44 = 22,398.34/x
  3. Step 3: Cross multiply
    39,384.92x = 54,362.44 × 22,398.34
  4. Step 4: Simplify right side
    39,384.92x = 1,217,628,414.35
  5. Step 5: Solve for x
    x = 1,217,628,414.35/39,384.92
  6. Step 6: Final answer
    x = 30,916.11

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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.