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Finding the Fourth Proportional to 21,980.52, 32,974.94 and 8,833.92

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Solution

The fourth proportional to 21,980.52, 32,974.94 and 8,833.92 is: 13,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.52 : 32,974.94 = 8,833.92 : x
  2. Step 2: Convert to fraction form
    21,980.52/32,974.94 = 8,833.92/x
  3. Step 3: Cross multiply
    21,980.52x = 32,974.94 × 8,833.92
  4. Step 4: Simplify right side
    21,980.52x = 291,297,981.96
  5. Step 5: Solve for x
    x = 291,297,981.96/21,980.52
  6. Step 6: Final answer
    x = 13,252.55

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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.