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Finding the Fourth Proportional to 8,975.88, 13,486.50 and 5,690.52

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Solution

The fourth proportional to 8,975.88, 13,486.50 and 5,690.52 is: 8,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.88 : 13,486.50 = 5,690.52 : x
  2. Step 2: Convert to fraction form
    8,975.88/13,486.50 = 5,690.52/x
  3. Step 3: Cross multiply
    8,975.88x = 13,486.50 × 5,690.52
  4. Step 4: Simplify right side
    8,975.88x = 76,745,197.98
  5. Step 5: Solve for x
    x = 76,745,197.98/8,975.88
  6. Step 6: Final answer
    x = 8,550.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.