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Finding the Fourth Proportional to 5,985,902.70, 8,978,854.05 and 5,891,424.30

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Solution

The fourth proportional to 5,985,902.70, 8,978,854.05 and 5,891,424.30 is: 8,837,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985,902.70 : 8,978,854.05 = 5,891,424.30 : x
  2. Step 2: Convert to fraction form
    5,985,902.70/8,978,854.05 = 5,891,424.30/x
  3. Step 3: Cross multiply
    5,985,902.70x = 8,978,854.05 × 5,891,424.30
  4. Step 4: Simplify right side
    5,985,902.70x = 52,898,238,936,323.41
  5. Step 5: Solve for x
    x = 52,898,238,936,323.41/5,985,902.70
  6. Step 6: Final answer
    x = 8,837,136.45

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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.