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Finding the Fourth Proportional to 6,800.64, 9,387.36 and 4,008.48

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Solution

The fourth proportional to 6,800.64, 9,387.36 and 4,008.48 is: 5,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.64 : 9,387.36 = 4,008.48 : x
  2. Step 2: Convert to fraction form
    6,800.64/9,387.36 = 4,008.48/x
  3. Step 3: Cross multiply
    6,800.64x = 9,387.36 × 4,008.48
  4. Step 4: Simplify right side
    6,800.64x = 37,629,044.81
  5. Step 5: Solve for x
    x = 37,629,044.81/6,800.64
  6. Step 6: Final answer
    x = 5,533.16

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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.