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Finding the Fourth Proportional to 3,048.20, 4,277.20 and 3,048.20

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Solution

The fourth proportional to 3,048.20, 4,277.20 and 3,048.20 is: 4,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.20 : 4,277.20 = 3,048.20 : x
  2. Step 2: Convert to fraction form
    3,048.20/4,277.20 = 3,048.20/x
  3. Step 3: Cross multiply
    3,048.20x = 4,277.20 × 3,048.20
  4. Step 4: Simplify right side
    3,048.20x = 13,037,761.04
  5. Step 5: Solve for x
    x = 13,037,761.04/3,048.20
  6. Step 6: Final answer
    x = 4,277.20

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