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Finding the Fourth Proportional to 8,670.65, 11,965.54 and 4,893.98

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Solution

The fourth proportional to 8,670.65, 11,965.54 and 4,893.98 is: 6,753.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.65 : 11,965.54 = 4,893.98 : x
  2. Step 2: Convert to fraction form
    8,670.65/11,965.54 = 4,893.98/x
  3. Step 3: Cross multiply
    8,670.65x = 11,965.54 × 4,893.98
  4. Step 4: Simplify right side
    8,670.65x = 58,559,041.39
  5. Step 5: Solve for x
    x = 58,559,041.39/8,670.65
  6. Step 6: Final answer
    x = 6,753.71

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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.