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Finding the Fourth Proportional to 7,210.08, 9,949.88 and 4,066.26

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Solution

The fourth proportional to 7,210.08, 9,949.88 and 4,066.26 is: 5,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.08 : 9,949.88 = 4,066.26 : x
  2. Step 2: Convert to fraction form
    7,210.08/9,949.88 = 4,066.26/x
  3. Step 3: Cross multiply
    7,210.08x = 9,949.88 × 4,066.26
  4. Step 4: Simplify right side
    7,210.08x = 40,458,799.05
  5. Step 5: Solve for x
    x = 40,458,799.05/7,210.08
  6. Step 6: Final answer
    x = 5,611.42

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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.