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Finding the Fourth Proportional to 10,912.50, 15,058.11 and 7,326.72

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Solution

The fourth proportional to 10,912.50, 15,058.11 and 7,326.72 is: 10,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.50 : 15,058.11 = 7,326.72 : x
  2. Step 2: Convert to fraction form
    10,912.50/15,058.11 = 7,326.72/x
  3. Step 3: Cross multiply
    10,912.50x = 15,058.11 × 7,326.72
  4. Step 4: Simplify right side
    10,912.50x = 110,326,555.70
  5. Step 5: Solve for x
    x = 110,326,555.70/10,912.50
  6. Step 6: Final answer
    x = 10,110.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.