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Finding the Fourth Proportional to 10,894.66, 15,039.20 and 7,362.66

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Solution

The fourth proportional to 10,894.66, 15,039.20 and 7,362.66 is: 10,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,894.66 : 15,039.20 = 7,362.66 : x
  2. Step 2: Convert to fraction form
    10,894.66/15,039.20 = 7,362.66/x
  3. Step 3: Cross multiply
    10,894.66x = 15,039.20 × 7,362.66
  4. Step 4: Simplify right side
    10,894.66x = 110,728,516.27
  5. Step 5: Solve for x
    x = 110,728,516.27/10,894.66
  6. Step 6: Final answer
    x = 10,163.56

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1.5x scale

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.