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Finding the Fourth Proportional to 19,053.83, 28,581.53 and 7,206.44

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Solution

The fourth proportional to 19,053.83, 28,581.53 and 7,206.44 is: 10,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,053.83 : 28,581.53 = 7,206.44 : x
  2. Step 2: Convert to fraction form
    19,053.83/28,581.53 = 7,206.44/x
  3. Step 3: Cross multiply
    19,053.83x = 28,581.53 × 7,206.44
  4. Step 4: Simplify right side
    19,053.83x = 205,970,902.11
  5. Step 5: Solve for x
    x = 205,970,902.11/19,053.83
  6. Step 6: Final answer
    x = 10,809.95

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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.