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Finding the Fourth Proportional to 16,817,643.30, 23,560,643.85 and 16,817,643.30

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Solution

The fourth proportional to 16,817,643.30, 23,560,643.85 and 16,817,643.30 is: 23,560,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,817,643.30 : 23,560,643.85 = 16,817,643.30 : x
  2. Step 2: Convert to fraction form
    16,817,643.30/23,560,643.85 = 16,817,643.30/x
  3. Step 3: Cross multiply
    16,817,643.30x = 23,560,643.85 × 16,817,643.30
  4. Step 4: Simplify right side
    16,817,643.30x = 396,234,504,187,638.75
  5. Step 5: Solve for x
    x = 396,234,504,187,638.75/16,817,643.30
  6. Step 6: Final answer
    x = 23,560,643.85

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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.