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Finding the Fourth Proportional to 27,809.73, 41,720.93 and 9,089.52

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Solution

The fourth proportional to 27,809.73, 41,720.93 and 9,089.52 is: 13,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.73 : 41,720.93 = 9,089.52 : x
  2. Step 2: Convert to fraction form
    27,809.73/41,720.93 = 9,089.52/x
  3. Step 3: Cross multiply
    27,809.73x = 41,720.93 × 9,089.52
  4. Step 4: Simplify right side
    27,809.73x = 379,223,182.21
  5. Step 5: Solve for x
    x = 379,223,182.21/27,809.73
  6. Step 6: Final answer
    x = 13,636.35

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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.