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Finding the Fourth Proportional to 16,815.20, 25,224.18 and 6,952.64

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Solution

The fourth proportional to 16,815.20, 25,224.18 and 6,952.64 is: 10,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.20 : 25,224.18 = 6,952.64 : x
  2. Step 2: Convert to fraction form
    16,815.20/25,224.18 = 6,952.64/x
  3. Step 3: Cross multiply
    16,815.20x = 25,224.18 × 6,952.64
  4. Step 4: Simplify right side
    16,815.20x = 175,374,642.84
  5. Step 5: Solve for x
    x = 175,374,642.84/16,815.20
  6. Step 6: Final answer
    x = 10,429.53

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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.