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Finding the Fourth Proportional to 7,885.72, 10,882.72 and 4,348.92

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Solution

The fourth proportional to 7,885.72, 10,882.72 and 4,348.92 is: 6,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.72 : 10,882.72 = 4,348.92 : x
  2. Step 2: Convert to fraction form
    7,885.72/10,882.72 = 4,348.92/x
  3. Step 3: Cross multiply
    7,885.72x = 10,882.72 × 4,348.92
  4. Step 4: Simplify right side
    7,885.72x = 47,328,078.66
  5. Step 5: Solve for x
    x = 47,328,078.66/7,885.72
  6. Step 6: Final answer
    x = 6,001.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.