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Finding the Fourth Proportional to 6,818.48, 9,399.48 and 4,822.88

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Solution

The fourth proportional to 6,818.48, 9,399.48 and 4,822.88 is: 6,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.48 : 9,399.48 = 4,822.88 : x
  2. Step 2: Convert to fraction form
    6,818.48/9,399.48 = 4,822.88/x
  3. Step 3: Cross multiply
    6,818.48x = 9,399.48 × 4,822.88
  4. Step 4: Simplify right side
    6,818.48x = 45,332,564.10
  5. Step 5: Solve for x
    x = 45,332,564.10/6,818.48
  6. Step 6: Final answer
    x = 6,648.49

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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.