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Finding the Fourth Proportional to 5,355.90, 8,029.05 and 4,772.70

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Solution

The fourth proportional to 5,355.90, 8,029.05 and 4,772.70 is: 7,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.90 : 8,029.05 = 4,772.70 : x
  2. Step 2: Convert to fraction form
    5,355.90/8,029.05 = 4,772.70/x
  3. Step 3: Cross multiply
    5,355.90x = 8,029.05 × 4,772.70
  4. Step 4: Simplify right side
    5,355.90x = 38,320,246.94
  5. Step 5: Solve for x
    x = 38,320,246.94/5,355.90
  6. Step 6: Final answer
    x = 7,154.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.