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Finding the Fourth Proportional to 6,993.74, 9,651.07 and 3,807.05

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Solution

The fourth proportional to 6,993.74, 9,651.07 and 3,807.05 is: 5,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.74 : 9,651.07 = 3,807.05 : x
  2. Step 2: Convert to fraction form
    6,993.74/9,651.07 = 3,807.05/x
  3. Step 3: Cross multiply
    6,993.74x = 9,651.07 × 3,807.05
  4. Step 4: Simplify right side
    6,993.74x = 36,742,041.13
  5. Step 5: Solve for x
    x = 36,742,041.13/6,993.74
  6. Step 6: Final answer
    x = 5,253.56

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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.