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Finding the Fourth Proportional to 15,359.79, 23,047.11 and 7,469.04

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Solution

The fourth proportional to 15,359.79, 23,047.11 and 7,469.04 is: 11,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,359.79 : 23,047.11 = 7,469.04 : x
  2. Step 2: Convert to fraction form
    15,359.79/23,047.11 = 7,469.04/x
  3. Step 3: Cross multiply
    15,359.79x = 23,047.11 × 7,469.04
  4. Step 4: Simplify right side
    15,359.79x = 172,139,786.47
  5. Step 5: Solve for x
    x = 172,139,786.47/15,359.79
  6. Step 6: Final answer
    x = 11,207.17

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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.