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Finding the Fourth Proportional to 17,813.91, 26,710.98 and 7,291.32

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Solution

The fourth proportional to 17,813.91, 26,710.98 and 7,291.32 is: 10,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.91 : 26,710.98 = 7,291.32 : x
  2. Step 2: Convert to fraction form
    17,813.91/26,710.98 = 7,291.32/x
  3. Step 3: Cross multiply
    17,813.91x = 26,710.98 × 7,291.32
  4. Step 4: Simplify right side
    17,813.91x = 194,758,302.69
  5. Step 5: Solve for x
    x = 194,758,302.69/17,813.91
  6. Step 6: Final answer
    x = 10,932.93

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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.