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Finding the Fourth Proportional to 15,637.72, 23,443.66 and 7,313.64

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Solution

The fourth proportional to 15,637.72, 23,443.66 and 7,313.64 is: 10,964.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.72 : 23,443.66 = 7,313.64 : x
  2. Step 2: Convert to fraction form
    15,637.72/23,443.66 = 7,313.64/x
  3. Step 3: Cross multiply
    15,637.72x = 23,443.66 × 7,313.64
  4. Step 4: Simplify right side
    15,637.72x = 171,458,489.52
  5. Step 5: Solve for x
    x = 171,458,489.52/15,637.72
  6. Step 6: Final answer
    x = 10,964.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.