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Finding the Fourth Proportional to 8,366, 11,545.44 and 4,640

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Solution

The fourth proportional to 8,366, 11,545.44 and 4,640 is: 6,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366 : 11,545.44 = 4,640 : x
  2. Step 2: Convert to fraction form
    8,366/11,545.44 = 4,640/x
  3. Step 3: Cross multiply
    8,366x = 11,545.44 × 4,640
  4. Step 4: Simplify right side
    8,366x = 53,570,841.60
  5. Step 5: Solve for x
    x = 53,570,841.60/8,366
  6. Step 6: Final answer
    x = 6,403.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.