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Finding the Fourth Proportional to 8,995.66, 13,468.06 and 4,769.28

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Solution

The fourth proportional to 8,995.66, 13,468.06 and 4,769.28 is: 7,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.66 : 13,468.06 = 4,769.28 : x
  2. Step 2: Convert to fraction form
    8,995.66/13,468.06 = 4,769.28/x
  3. Step 3: Cross multiply
    8,995.66x = 13,468.06 × 4,769.28
  4. Step 4: Simplify right side
    8,995.66x = 64,232,949.20
  5. Step 5: Solve for x
    x = 64,232,949.20/8,995.66
  6. Step 6: Final answer
    x = 7,140.44

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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.