Home / 7,728.44-10,665.25-4,191.66

Finding the Fourth Proportional to 7,728.44, 10,665.25 and 4,191.66

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Solution

The fourth proportional to 7,728.44, 10,665.25 and 4,191.66 is: 5,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.44 : 10,665.25 = 4,191.66 : x
  2. Step 2: Convert to fraction form
    7,728.44/10,665.25 = 4,191.66/x
  3. Step 3: Cross multiply
    7,728.44x = 10,665.25 × 4,191.66
  4. Step 4: Simplify right side
    7,728.44x = 44,705,101.82
  5. Step 5: Solve for x
    x = 44,705,101.82/7,728.44
  6. Step 6: Final answer
    x = 5,784.49

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Half scale
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Double scale
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Similar ratio
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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.