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Finding the Fourth Proportional to 17,653.88, 26,483.30 and 5,174.79

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Solution

The fourth proportional to 17,653.88, 26,483.30 and 5,174.79 is: 7,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.88 : 26,483.30 = 5,174.79 : x
  2. Step 2: Convert to fraction form
    17,653.88/26,483.30 = 5,174.79/x
  3. Step 3: Cross multiply
    17,653.88x = 26,483.30 × 5,174.79
  4. Step 4: Simplify right side
    17,653.88x = 137,045,490.13
  5. Step 5: Solve for x
    x = 137,045,490.13/17,653.88
  6. Step 6: Final answer
    x = 7,762.91

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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.