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Finding the Fourth Proportional to 5,782,648.60, 8,673,972.90 and 3,645,803.80

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Solution

The fourth proportional to 5,782,648.60, 8,673,972.90 and 3,645,803.80 is: 5,468,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,782,648.60 : 8,673,972.90 = 3,645,803.80 : x
  2. Step 2: Convert to fraction form
    5,782,648.60/8,673,972.90 = 3,645,803.80/x
  3. Step 3: Cross multiply
    5,782,648.60x = 8,673,972.90 × 3,645,803.80
  4. Step 4: Simplify right side
    5,782,648.60x = 31,623,603,359,917.02
  5. Step 5: Solve for x
    x = 31,623,603,359,917.02/5,782,648.60
  6. Step 6: Final answer
    x = 5,468,705.70

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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.