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Finding the Fourth Proportional to 16,897.20, 23,610 and 16,897.20

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Solution

The fourth proportional to 16,897.20, 23,610 and 16,897.20 is: 23,610

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,897.20 : 23,610 = 16,897.20 : x
  2. Step 2: Convert to fraction form
    16,897.20/23,610 = 16,897.20/x
  3. Step 3: Cross multiply
    16,897.20x = 23,610 × 16,897.20
  4. Step 4: Simplify right side
    16,897.20x = 398,942,892
  5. Step 5: Solve for x
    x = 398,942,892/16,897.20
  6. Step 6: Final answer
    x = 23,610

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.