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Finding the Fourth Proportional to 8,752.86, 12,077.82 and 4,975.38

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Solution

The fourth proportional to 8,752.86, 12,077.82 and 4,975.38 is: 6,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.86 : 12,077.82 = 4,975.38 : x
  2. Step 2: Convert to fraction form
    8,752.86/12,077.82 = 4,975.38/x
  3. Step 3: Cross multiply
    8,752.86x = 12,077.82 × 4,975.38
  4. Step 4: Simplify right side
    8,752.86x = 60,091,744.07
  5. Step 5: Solve for x
    x = 60,091,744.07/8,752.86
  6. Step 6: Final answer
    x = 6,865.38

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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.