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Finding the Fourth Proportional to 8,964.41, 13,415.12 and 7,364.49

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Solution

The fourth proportional to 8,964.41, 13,415.12 and 7,364.49 is: 11,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.41 : 13,415.12 = 7,364.49 : x
  2. Step 2: Convert to fraction form
    8,964.41/13,415.12 = 7,364.49/x
  3. Step 3: Cross multiply
    8,964.41x = 13,415.12 × 7,364.49
  4. Step 4: Simplify right side
    8,964.41x = 98,795,457.58
  5. Step 5: Solve for x
    x = 98,795,457.58/8,964.41
  6. Step 6: Final answer
    x = 11,020.86

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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.