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Finding the Fourth Proportional to 11,663.66, 17,583.40 and 10,911.98

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Solution

The fourth proportional to 11,663.66, 17,583.40 and 10,911.98 is: 16,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.66 : 17,583.40 = 10,911.98 : x
  2. Step 2: Convert to fraction form
    11,663.66/17,583.40 = 10,911.98/x
  3. Step 3: Cross multiply
    11,663.66x = 17,583.40 × 10,911.98
  4. Step 4: Simplify right side
    11,663.66x = 191,869,709.13
  5. Step 5: Solve for x
    x = 191,869,709.13/11,663.66
  6. Step 6: Final answer
    x = 16,450.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.