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Finding the Fourth Proportional to 7,304.40, 10,956.60 and 6,872.40

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Solution

The fourth proportional to 7,304.40, 10,956.60 and 6,872.40 is: 10,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,304.40 : 10,956.60 = 6,872.40 : x
  2. Step 2: Convert to fraction form
    7,304.40/10,956.60 = 6,872.40/x
  3. Step 3: Cross multiply
    7,304.40x = 10,956.60 × 6,872.40
  4. Step 4: Simplify right side
    7,304.40x = 75,298,137.84
  5. Step 5: Solve for x
    x = 75,298,137.84/7,304.40
  6. Step 6: Final answer
    x = 10,308.60

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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.