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Finding the Fourth Proportional to 8,745.65, 13,113.61 and 3,545.45

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Solution

The fourth proportional to 8,745.65, 13,113.61 and 3,545.45 is: 5,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.65 : 13,113.61 = 3,545.45 : x
  2. Step 2: Convert to fraction form
    8,745.65/13,113.61 = 3,545.45/x
  3. Step 3: Cross multiply
    8,745.65x = 13,113.61 × 3,545.45
  4. Step 4: Simplify right side
    8,745.65x = 46,493,574.14
  5. Step 5: Solve for x
    x = 46,493,574.14/8,745.65
  6. Step 6: Final answer
    x = 5,316.20

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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.