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Finding the Fourth Proportional to 8,557.22, 11,805.81 and 5,019.14

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Solution

The fourth proportional to 8,557.22, 11,805.81 and 5,019.14 is: 6,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.22 : 11,805.81 = 5,019.14 : x
  2. Step 2: Convert to fraction form
    8,557.22/11,805.81 = 5,019.14/x
  3. Step 3: Cross multiply
    8,557.22x = 11,805.81 × 5,019.14
  4. Step 4: Simplify right side
    8,557.22x = 59,255,013.20
  5. Step 5: Solve for x
    x = 59,255,013.20/8,557.22
  6. Step 6: Final answer
    x = 6,924.56

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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.