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Finding the Fourth Proportional to 15,491.47, 23,240.45 and 7,696.03

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Solution

The fourth proportional to 15,491.47, 23,240.45 and 7,696.03 is: 11,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.47 : 23,240.45 = 7,696.03 : x
  2. Step 2: Convert to fraction form
    15,491.47/23,240.45 = 7,696.03/x
  3. Step 3: Cross multiply
    15,491.47x = 23,240.45 × 7,696.03
  4. Step 4: Simplify right side
    15,491.47x = 178,859,161.93
  5. Step 5: Solve for x
    x = 178,859,161.93/15,491.47
  6. Step 6: Final answer
    x = 11,545.65

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1.5x scale

Why These Related Problems?

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