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Finding the Fourth Proportional to 1,920.92, 2,652.18 and 1,472.00

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Solution

The fourth proportional to 1,920.92, 2,652.18 and 1,472.00 is: 2,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.92 : 2,652.18 = 1,472.00 : x
  2. Step 2: Convert to fraction form
    1,920.92/2,652.18 = 1,472.00/x
  3. Step 3: Cross multiply
    1,920.92x = 2,652.18 × 1,472.00
  4. Step 4: Simplify right side
    1,920.92x = 3,903,990.18
  5. Step 5: Solve for x
    x = 3,903,990.18/1,920.92
  6. Step 6: Final answer
    x = 2,032.35

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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.