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Finding the Fourth Proportional to 19,154.93, 28,734.45 and 8,064.11

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Solution

The fourth proportional to 19,154.93, 28,734.45 and 8,064.11 is: 12,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.93 : 28,734.45 = 8,064.11 : x
  2. Step 2: Convert to fraction form
    19,154.93/28,734.45 = 8,064.11/x
  3. Step 3: Cross multiply
    19,154.93x = 28,734.45 × 8,064.11
  4. Step 4: Simplify right side
    19,154.93x = 231,717,645.55
  5. Step 5: Solve for x
    x = 231,717,645.55/19,154.93
  6. Step 6: Final answer
    x = 12,097.02

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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.