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Finding the Fourth Proportional to 7,412.58, 11,122.16 and 3,901.73

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Solution

The fourth proportional to 7,412.58, 11,122.16 and 3,901.73 is: 5,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.58 : 11,122.16 = 3,901.73 : x
  2. Step 2: Convert to fraction form
    7,412.58/11,122.16 = 3,901.73/x
  3. Step 3: Cross multiply
    7,412.58x = 11,122.16 × 3,901.73
  4. Step 4: Simplify right side
    7,412.58x = 43,395,590.22
  5. Step 5: Solve for x
    x = 43,395,590.22/7,412.58
  6. Step 6: Final answer
    x = 5,854.32

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.