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Finding the Fourth Proportional to 19,110.69, 28,666.05 and 5,964.09

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Solution

The fourth proportional to 19,110.69, 28,666.05 and 5,964.09 is: 8,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.69 : 28,666.05 = 5,964.09 : x
  2. Step 2: Convert to fraction form
    19,110.69/28,666.05 = 5,964.09/x
  3. Step 3: Cross multiply
    19,110.69x = 28,666.05 × 5,964.09
  4. Step 4: Simplify right side
    19,110.69x = 170,966,902.14
  5. Step 5: Solve for x
    x = 170,966,902.14/19,110.69
  6. Step 6: Final answer
    x = 8,946.14

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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.