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Finding the Fourth Proportional to 2,922.52, 4,384.05 and 974.92

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Solution

The fourth proportional to 2,922.52, 4,384.05 and 974.92 is: 1,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.52 : 4,384.05 = 974.92 : x
  2. Step 2: Convert to fraction form
    2,922.52/4,384.05 = 974.92/x
  3. Step 3: Cross multiply
    2,922.52x = 4,384.05 × 974.92
  4. Step 4: Simplify right side
    2,922.52x = 4,274,098.03
  5. Step 5: Solve for x
    x = 4,274,098.03/2,922.52
  6. Step 6: Final answer
    x = 1,462.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.