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Finding the Fourth Proportional to 14,392.67, 19,862.18 and 8,019.66

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Solution

The fourth proportional to 14,392.67, 19,862.18 and 8,019.66 is: 11,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.67 : 19,862.18 = 8,019.66 : x
  2. Step 2: Convert to fraction form
    14,392.67/19,862.18 = 8,019.66/x
  3. Step 3: Cross multiply
    14,392.67x = 19,862.18 × 8,019.66
  4. Step 4: Simplify right side
    14,392.67x = 159,287,930.46
  5. Step 5: Solve for x
    x = 159,287,930.46/14,392.67
  6. Step 6: Final answer
    x = 11,067.30

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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.