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Finding the Fourth Proportional to 19,506.18, 26,911.98 and 11,007.30

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Solution

The fourth proportional to 19,506.18, 26,911.98 and 11,007.30 is: 15,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,506.18 : 26,911.98 = 11,007.30 : x
  2. Step 2: Convert to fraction form
    19,506.18/26,911.98 = 11,007.30/x
  3. Step 3: Cross multiply
    19,506.18x = 26,911.98 × 11,007.30
  4. Step 4: Simplify right side
    19,506.18x = 296,228,237.45
  5. Step 5: Solve for x
    x = 296,228,237.45/19,506.18
  6. Step 6: Final answer
    x = 15,186.38

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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.