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Finding the Fourth Proportional to 6,005.79, 8,278.07 and 4,015.62

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Solution

The fourth proportional to 6,005.79, 8,278.07 and 4,015.62 is: 5,534.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,005.79 : 8,278.07 = 4,015.62 : x
  2. Step 2: Convert to fraction form
    6,005.79/8,278.07 = 4,015.62/x
  3. Step 3: Cross multiply
    6,005.79x = 8,278.07 × 4,015.62
  4. Step 4: Simplify right side
    6,005.79x = 33,241,593.49
  5. Step 5: Solve for x
    x = 33,241,593.49/6,005.79
  6. Step 6: Final answer
    x = 5,534.92

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Half scale
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Double scale
Find fourth proportional to 6,006.79, 8,279.45 and 4,016.62
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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.