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Finding the Fourth Proportional to 19,448.58, 26,839.08 and 11,065.08

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Solution

The fourth proportional to 19,448.58, 26,839.08 and 11,065.08 is: 15,269.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,448.58 : 26,839.08 = 11,065.08 : x
  2. Step 2: Convert to fraction form
    19,448.58/26,839.08 = 11,065.08/x
  3. Step 3: Cross multiply
    19,448.58x = 26,839.08 × 11,065.08
  4. Step 4: Simplify right side
    19,448.58x = 296,976,567.33
  5. Step 5: Solve for x
    x = 296,976,567.33/19,448.58
  6. Step 6: Final answer
    x = 15,269.83

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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.