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Finding the Fourth Proportional to 10,916.74, 15,066.24 and 6,201.28

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Solution

The fourth proportional to 10,916.74, 15,066.24 and 6,201.28 is: 8,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.74 : 15,066.24 = 6,201.28 : x
  2. Step 2: Convert to fraction form
    10,916.74/15,066.24 = 6,201.28/x
  3. Step 3: Cross multiply
    10,916.74x = 15,066.24 × 6,201.28
  4. Step 4: Simplify right side
    10,916.74x = 93,429,972.79
  5. Step 5: Solve for x
    x = 93,429,972.79/10,916.74
  6. Step 6: Final answer
    x = 8,558.41

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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.