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Finding the Fourth Proportional to 4,793.48, 6,615.78 and 4,007.24

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Solution

The fourth proportional to 4,793.48, 6,615.78 and 4,007.24 is: 5,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.48 : 6,615.78 = 4,007.24 : x
  2. Step 2: Convert to fraction form
    4,793.48/6,615.78 = 4,007.24/x
  3. Step 3: Cross multiply
    4,793.48x = 6,615.78 × 4,007.24
  4. Step 4: Simplify right side
    4,793.48x = 26,511,018.25
  5. Step 5: Solve for x
    x = 26,511,018.25/4,793.48
  6. Step 6: Final answer
    x = 5,530.64

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Half scale
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Double scale
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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.