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Finding the Fourth Proportional to 7,970.88, 11,956.32 and 5,759.04

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Solution

The fourth proportional to 7,970.88, 11,956.32 and 5,759.04 is: 8,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.88 : 11,956.32 = 5,759.04 : x
  2. Step 2: Convert to fraction form
    7,970.88/11,956.32 = 5,759.04/x
  3. Step 3: Cross multiply
    7,970.88x = 11,956.32 × 5,759.04
  4. Step 4: Simplify right side
    7,970.88x = 68,856,925.13
  5. Step 5: Solve for x
    x = 68,856,925.13/7,970.88
  6. Step 6: Final answer
    x = 8,638.56

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Similar ratio
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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.