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Finding the Fourth Proportional to 11,792.70, 17,689.10 and 11,201.47

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Solution

The fourth proportional to 11,792.70, 17,689.10 and 11,201.47 is: 16,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,792.70 : 17,689.10 = 11,201.47 : x
  2. Step 2: Convert to fraction form
    11,792.70/17,689.10 = 11,201.47/x
  3. Step 3: Cross multiply
    11,792.70x = 17,689.10 × 11,201.47
  4. Step 4: Simplify right side
    11,792.70x = 198,143,822.75
  5. Step 5: Solve for x
    x = 198,143,822.75/11,792.70
  6. Step 6: Final answer
    x = 16,802.24

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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.