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Finding the Fourth Proportional to 19,168.38, 26,448.38 and 11,209.06

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Solution

The fourth proportional to 19,168.38, 26,448.38 and 11,209.06 is: 15,466.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.38 : 26,448.38 = 11,209.06 : x
  2. Step 2: Convert to fraction form
    19,168.38/26,448.38 = 11,209.06/x
  3. Step 3: Cross multiply
    19,168.38x = 26,448.38 × 11,209.06
  4. Step 4: Simplify right side
    19,168.38x = 296,461,422.28
  5. Step 5: Solve for x
    x = 296,461,422.28/19,168.38
  6. Step 6: Final answer
    x = 15,466.17

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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.