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Finding the Fourth Proportional to 8,950.24, 12,351.36 and 4,971.64

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Solution

The fourth proportional to 8,950.24, 12,351.36 and 4,971.64 is: 6,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.24 : 12,351.36 = 4,971.64 : x
  2. Step 2: Convert to fraction form
    8,950.24/12,351.36 = 4,971.64/x
  3. Step 3: Cross multiply
    8,950.24x = 12,351.36 × 4,971.64
  4. Step 4: Simplify right side
    8,950.24x = 61,406,515.43
  5. Step 5: Solve for x
    x = 61,406,515.43/8,950.24
  6. Step 6: Final answer
    x = 6,860.88

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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.