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Finding the Fourth Proportional to 8,979,312.92, 13,473,472.98 and 4,187,375.60

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Solution

The fourth proportional to 8,979,312.92, 13,473,472.98 and 4,187,375.60 is: 6,283,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979,312.92 : 13,473,472.98 = 4,187,375.60 : x
  2. Step 2: Convert to fraction form
    8,979,312.92/13,473,472.98 = 4,187,375.60/x
  3. Step 3: Cross multiply
    8,979,312.92x = 13,473,472.98 × 4,187,375.60
  4. Step 4: Simplify right side
    8,979,312.92x = 56,418,492,003,711.29
  5. Step 5: Solve for x
    x = 56,418,492,003,711.29/8,979,312.92
  6. Step 6: Final answer
    x = 6,283,163.59

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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.