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Finding the Fourth Proportional to 19,251.83, 28,877.62 and 7,853.71

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Solution

The fourth proportional to 19,251.83, 28,877.62 and 7,853.71 is: 11,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.83 : 28,877.62 = 7,853.71 : x
  2. Step 2: Convert to fraction form
    19,251.83/28,877.62 = 7,853.71/x
  3. Step 3: Cross multiply
    19,251.83x = 28,877.62 × 7,853.71
  4. Step 4: Simplify right side
    19,251.83x = 226,796,452.97
  5. Step 5: Solve for x
    x = 226,796,452.97/19,251.83
  6. Step 6: Final answer
    x = 11,780.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.