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Finding the Fourth Proportional to 6,985.97, 10,484.22 and 3,699.80

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Solution

The fourth proportional to 6,985.97, 10,484.22 and 3,699.80 is: 5,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.97 : 10,484.22 = 3,699.80 : x
  2. Step 2: Convert to fraction form
    6,985.97/10,484.22 = 3,699.80/x
  3. Step 3: Cross multiply
    6,985.97x = 10,484.22 × 3,699.80
  4. Step 4: Simplify right side
    6,985.97x = 38,789,517.16
  5. Step 5: Solve for x
    x = 38,789,517.16/6,985.97
  6. Step 6: Final answer
    x = 5,552.49

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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.