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Finding the Fourth Proportional to 7,885.68, 11,828.52 and 4,956.72

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Solution

The fourth proportional to 7,885.68, 11,828.52 and 4,956.72 is: 7,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.68 : 11,828.52 = 4,956.72 : x
  2. Step 2: Convert to fraction form
    7,885.68/11,828.52 = 4,956.72/x
  3. Step 3: Cross multiply
    7,885.68x = 11,828.52 × 4,956.72
  4. Step 4: Simplify right side
    7,885.68x = 58,630,661.65
  5. Step 5: Solve for x
    x = 58,630,661.65/7,885.68
  6. Step 6: Final answer
    x = 7,435.08

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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.