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Finding the Fourth Proportional to 16,304.96, 24,454.20 and 7,981.40

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Solution

The fourth proportional to 16,304.96, 24,454.20 and 7,981.40 is: 11,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,304.96 : 24,454.20 = 7,981.40 : x
  2. Step 2: Convert to fraction form
    16,304.96/24,454.20 = 7,981.40/x
  3. Step 3: Cross multiply
    16,304.96x = 24,454.20 × 7,981.40
  4. Step 4: Simplify right side
    16,304.96x = 195,178,751.88
  5. Step 5: Solve for x
    x = 195,178,751.88/16,304.96
  6. Step 6: Final answer
    x = 11,970.51

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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.