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Finding the Fourth Proportional to 6,876.65, 10,316.41 and 3,126.65

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Solution

The fourth proportional to 6,876.65, 10,316.41 and 3,126.65 is: 4,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.65 : 10,316.41 = 3,126.65 : x
  2. Step 2: Convert to fraction form
    6,876.65/10,316.41 = 3,126.65/x
  3. Step 3: Cross multiply
    6,876.65x = 10,316.41 × 3,126.65
  4. Step 4: Simplify right side
    6,876.65x = 32,255,743.93
  5. Step 5: Solve for x
    x = 32,255,743.93/6,876.65
  6. Step 6: Final answer
    x = 4,690.62

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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.