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Finding the Fourth Proportional to 11,264.87, 15,545.95 and 7,481.51

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Solution

The fourth proportional to 11,264.87, 15,545.95 and 7,481.51 is: 10,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,264.87 : 15,545.95 = 7,481.51 : x
  2. Step 2: Convert to fraction form
    11,264.87/15,545.95 = 7,481.51/x
  3. Step 3: Cross multiply
    11,264.87x = 15,545.95 × 7,481.51
  4. Step 4: Simplify right side
    11,264.87x = 116,307,180.38
  5. Step 5: Solve for x
    x = 116,307,180.38/11,264.87
  6. Step 6: Final answer
    x = 10,324.77

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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.