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Finding the Fourth Proportional to 16,954.80, 25,432.20 and 9,956.40

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Solution

The fourth proportional to 16,954.80, 25,432.20 and 9,956.40 is: 14,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,954.80 : 25,432.20 = 9,956.40 : x
  2. Step 2: Convert to fraction form
    16,954.80/25,432.20 = 9,956.40/x
  3. Step 3: Cross multiply
    16,954.80x = 25,432.20 × 9,956.40
  4. Step 4: Simplify right side
    16,954.80x = 253,213,156.08
  5. Step 5: Solve for x
    x = 253,213,156.08/16,954.80
  6. Step 6: Final answer
    x = 14,934.60

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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.