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Finding the Fourth Proportional to 4,965.48, 7,448.22 and 3,015

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Solution

The fourth proportional to 4,965.48, 7,448.22 and 3,015 is: 4,522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.48 : 7,448.22 = 3,015 : x
  2. Step 2: Convert to fraction form
    4,965.48/7,448.22 = 3,015/x
  3. Step 3: Cross multiply
    4,965.48x = 7,448.22 × 3,015
  4. Step 4: Simplify right side
    4,965.48x = 22,456,383.30
  5. Step 5: Solve for x
    x = 22,456,383.30/4,965.48
  6. Step 6: Final answer
    x = 4,522.50

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