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Finding the Fourth Proportional to 7,181.10, 9,907.09 and 5,297.22

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Solution

The fourth proportional to 7,181.10, 9,907.09 and 5,297.22 is: 7,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.10 : 9,907.09 = 5,297.22 : x
  2. Step 2: Convert to fraction form
    7,181.10/9,907.09 = 5,297.22/x
  3. Step 3: Cross multiply
    7,181.10x = 9,907.09 × 5,297.22
  4. Step 4: Simplify right side
    7,181.10x = 52,480,035.29
  5. Step 5: Solve for x
    x = 52,480,035.29/7,181.10
  6. Step 6: Final answer
    x = 7,308.08

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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.