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Finding the Fourth Proportional to 8,796.53, 12,138.05 and 5,395.07

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Solution

The fourth proportional to 8,796.53, 12,138.05 and 5,395.07 is: 7,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.53 : 12,138.05 = 5,395.07 : x
  2. Step 2: Convert to fraction form
    8,796.53/12,138.05 = 5,395.07/x
  3. Step 3: Cross multiply
    8,796.53x = 12,138.05 × 5,395.07
  4. Step 4: Simplify right side
    8,796.53x = 65,485,673.25
  5. Step 5: Solve for x
    x = 65,485,673.25/8,796.53
  6. Step 6: Final answer
    x = 7,444.49

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1.5x scale

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.