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Finding the Fourth Proportional to 7,099.54, 9,797.32 and 4,117.09

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Solution

The fourth proportional to 7,099.54, 9,797.32 and 4,117.09 is: 5,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.54 : 9,797.32 = 4,117.09 : x
  2. Step 2: Convert to fraction form
    7,099.54/9,797.32 = 4,117.09/x
  3. Step 3: Cross multiply
    7,099.54x = 9,797.32 × 4,117.09
  4. Step 4: Simplify right side
    7,099.54x = 40,336,448.20
  5. Step 5: Solve for x
    x = 40,336,448.20/7,099.54
  6. Step 6: Final answer
    x = 5,681.56

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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.