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Finding the Fourth Proportional to 8,794,813.70, 13,192,220.55 and 7,913,015.30

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Solution

The fourth proportional to 8,794,813.70, 13,192,220.55 and 7,913,015.30 is: 11,869,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,794,813.70 : 13,192,220.55 = 7,913,015.30 : x
  2. Step 2: Convert to fraction form
    8,794,813.70/13,192,220.55 = 7,913,015.30/x
  3. Step 3: Cross multiply
    8,794,813.70x = 13,192,220.55 × 7,913,015.30
  4. Step 4: Simplify right side
    8,794,813.70x = 104,390,243,053,124.42
  5. Step 5: Solve for x
    x = 104,390,243,053,124.42/8,794,813.70
  6. Step 6: Final answer
    x = 11,869,522.95

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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.