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Finding the Fourth Proportional to 8,295.65, 11,462.55 and 6,630.78

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Solution

The fourth proportional to 8,295.65, 11,462.55 and 6,630.78 is: 9,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,295.65 : 11,462.55 = 6,630.78 : x
  2. Step 2: Convert to fraction form
    8,295.65/11,462.55 = 6,630.78/x
  3. Step 3: Cross multiply
    8,295.65x = 11,462.55 × 6,630.78
  4. Step 4: Simplify right side
    8,295.65x = 76,005,647.29
  5. Step 5: Solve for x
    x = 76,005,647.29/8,295.65
  6. Step 6: Final answer
    x = 9,162.11

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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.