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Finding the Fourth Proportional to 8,616.58, 11,887.77 and 4,888.42

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Solution

The fourth proportional to 8,616.58, 11,887.77 and 4,888.42 is: 6,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.58 : 11,887.77 = 4,888.42 : x
  2. Step 2: Convert to fraction form
    8,616.58/11,887.77 = 4,888.42/x
  3. Step 3: Cross multiply
    8,616.58x = 11,887.77 × 4,888.42
  4. Step 4: Simplify right side
    8,616.58x = 58,112,412.62
  5. Step 5: Solve for x
    x = 58,112,412.62/8,616.58
  6. Step 6: Final answer
    x = 6,744.25

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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.