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Finding the Fourth Proportional to 4,805.77, 6,631.86 and 2,892.76

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Solution

The fourth proportional to 4,805.77, 6,631.86 and 2,892.76 is: 3,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.77 : 6,631.86 = 2,892.76 : x
  2. Step 2: Convert to fraction form
    4,805.77/6,631.86 = 2,892.76/x
  3. Step 3: Cross multiply
    4,805.77x = 6,631.86 × 2,892.76
  4. Step 4: Simplify right side
    4,805.77x = 19,184,379.33
  5. Step 5: Solve for x
    x = 19,184,379.33/4,805.77
  6. Step 6: Final answer
    x = 3,991.95

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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.