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Finding the Fourth Proportional to 8,651.16, 12,968.52 and 4,263.48

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Solution

The fourth proportional to 8,651.16, 12,968.52 and 4,263.48 is: 6,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.16 : 12,968.52 = 4,263.48 : x
  2. Step 2: Convert to fraction form
    8,651.16/12,968.52 = 4,263.48/x
  3. Step 3: Cross multiply
    8,651.16x = 12,968.52 × 4,263.48
  4. Step 4: Simplify right side
    8,651.16x = 55,291,025.65
  5. Step 5: Solve for x
    x = 55,291,025.65/8,651.16
  6. Step 6: Final answer
    x = 6,391.17

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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.