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Finding the Fourth Proportional to 8,544.78, 11,791.89 and 5,008.05

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Solution

The fourth proportional to 8,544.78, 11,791.89 and 5,008.05 is: 6,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.78 : 11,791.89 = 5,008.05 : x
  2. Step 2: Convert to fraction form
    8,544.78/11,791.89 = 5,008.05/x
  3. Step 3: Cross multiply
    8,544.78x = 11,791.89 × 5,008.05
  4. Step 4: Simplify right side
    8,544.78x = 59,054,374.71
  5. Step 5: Solve for x
    x = 59,054,374.71/8,544.78
  6. Step 6: Final answer
    x = 6,911.16

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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.