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Finding the Fourth Proportional to 19,305.98, 26,641.80 and 11,348.42

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Solution

The fourth proportional to 19,305.98, 26,641.80 and 11,348.42 is: 15,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.98 : 26,641.80 = 11,348.42 : x
  2. Step 2: Convert to fraction form
    19,305.98/26,641.80 = 11,348.42/x
  3. Step 3: Cross multiply
    19,305.98x = 26,641.80 × 11,348.42
  4. Step 4: Simplify right side
    19,305.98x = 302,342,335.96
  5. Step 5: Solve for x
    x = 302,342,335.96/19,305.98
  6. Step 6: Final answer
    x = 15,660.55

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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.