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Finding the Fourth Proportional to 8,247.65, 12,376.53 and 6,877.94

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Solution

The fourth proportional to 8,247.65, 12,376.53 and 6,877.94 is: 10,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.65 : 12,376.53 = 6,877.94 : x
  2. Step 2: Convert to fraction form
    8,247.65/12,376.53 = 6,877.94/x
  3. Step 3: Cross multiply
    8,247.65x = 12,376.53 × 6,877.94
  4. Step 4: Simplify right side
    8,247.65x = 85,124,968.87
  5. Step 5: Solve for x
    x = 85,124,968.87/8,247.65
  6. Step 6: Final answer
    x = 10,321.12

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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.