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Finding the Fourth Proportional to 19,886.88, 29,823.94 and 8,793.33

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Solution

The fourth proportional to 19,886.88, 29,823.94 and 8,793.33 is: 13,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.88 : 29,823.94 = 8,793.33 : x
  2. Step 2: Convert to fraction form
    19,886.88/29,823.94 = 8,793.33/x
  3. Step 3: Cross multiply
    19,886.88x = 29,823.94 × 8,793.33
  4. Step 4: Simplify right side
    19,886.88x = 262,251,746.32
  5. Step 5: Solve for x
    x = 262,251,746.32/19,886.88
  6. Step 6: Final answer
    x = 13,187.17

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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.