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Finding the Fourth Proportional to 3,866.16, 5,334.48 and 2,294.76

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Solution

The fourth proportional to 3,866.16, 5,334.48 and 2,294.76 is: 3,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.16 : 5,334.48 = 2,294.76 : x
  2. Step 2: Convert to fraction form
    3,866.16/5,334.48 = 2,294.76/x
  3. Step 3: Cross multiply
    3,866.16x = 5,334.48 × 2,294.76
  4. Step 4: Simplify right side
    3,866.16x = 12,241,351.32
  5. Step 5: Solve for x
    x = 12,241,351.32/3,866.16
  6. Step 6: Final answer
    x = 3,166.28

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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.