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Finding the Fourth Proportional to 8,995.68, 12,412.62 and 5,016.60

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Solution

The fourth proportional to 8,995.68, 12,412.62 and 5,016.60 is: 6,922.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.68 : 12,412.62 = 5,016.60 : x
  2. Step 2: Convert to fraction form
    8,995.68/12,412.62 = 5,016.60/x
  3. Step 3: Cross multiply
    8,995.68x = 12,412.62 × 5,016.60
  4. Step 4: Simplify right side
    8,995.68x = 62,269,149.49
  5. Step 5: Solve for x
    x = 62,269,149.49/8,995.68
  6. Step 6: Final answer
    x = 6,922.12

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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.