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Finding the Fourth Proportional to 17,163,689.72, 25,745,136.06 and 8,641,738.04

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Solution

The fourth proportional to 17,163,689.72, 25,745,136.06 and 8,641,738.04 is: 12,962,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163,689.72 : 25,745,136.06 = 8,641,738.04 : x
  2. Step 2: Convert to fraction form
    17,163,689.72/25,745,136.06 = 8,641,738.04/x
  3. Step 3: Cross multiply
    17,163,689.72x = 25,745,136.06 × 8,641,738.04
  4. Step 4: Simplify right side
    17,163,689.72x = 222,482,721,634,677.69
  5. Step 5: Solve for x
    x = 222,482,721,634,677.69/17,163,689.72
  6. Step 6: Final answer
    x = 12,962,406.41

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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.