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Finding the Fourth Proportional to 6,598.80, 9,899.15 and 2,217.51

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Solution

The fourth proportional to 6,598.80, 9,899.15 and 2,217.51 is: 3,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,598.80 : 9,899.15 = 2,217.51 : x
  2. Step 2: Convert to fraction form
    6,598.80/9,899.15 = 2,217.51/x
  3. Step 3: Cross multiply
    6,598.80x = 9,899.15 × 2,217.51
  4. Step 4: Simplify right side
    6,598.80x = 21,951,453.03
  5. Step 5: Solve for x
    x = 21,951,453.03/6,598.80
  6. Step 6: Final answer
    x = 3,326.58

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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.