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Finding the Fourth Proportional to 17,897.52, 26,666.43 and 16,891.50

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Solution

The fourth proportional to 17,897.52, 26,666.43 and 16,891.50 is: 25,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.52 : 26,666.43 = 16,891.50 : x
  2. Step 2: Convert to fraction form
    17,897.52/26,666.43 = 16,891.50/x
  3. Step 3: Cross multiply
    17,897.52x = 26,666.43 × 16,891.50
  4. Step 4: Simplify right side
    17,897.52x = 450,436,002.35
  5. Step 5: Solve for x
    x = 450,436,002.35/17,897.52
  6. Step 6: Final answer
    x = 25,167.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.