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Finding the Fourth Proportional to 19,166.10, 26,448.03 and 11,207.85

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Solution

The fourth proportional to 19,166.10, 26,448.03 and 11,207.85 is: 15,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.10 : 26,448.03 = 11,207.85 : x
  2. Step 2: Convert to fraction form
    19,166.10/26,448.03 = 11,207.85/x
  3. Step 3: Cross multiply
    19,166.10x = 26,448.03 × 11,207.85
  4. Step 4: Simplify right side
    19,166.10x = 296,425,553.04
  5. Step 5: Solve for x
    x = 296,425,553.04/19,166.10
  6. Step 6: Final answer
    x = 15,466.14

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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.