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Finding the Fourth Proportional to 7,048.25, 10,572.38 and 2,431.25

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Solution

The fourth proportional to 7,048.25, 10,572.38 and 2,431.25 is: 3,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.25 : 10,572.38 = 2,431.25 : x
  2. Step 2: Convert to fraction form
    7,048.25/10,572.38 = 2,431.25/x
  3. Step 3: Cross multiply
    7,048.25x = 10,572.38 × 2,431.25
  4. Step 4: Simplify right side
    7,048.25x = 25,704,086.72
  5. Step 5: Solve for x
    x = 25,704,086.72/7,048.25
  6. Step 6: Final answer
    x = 3,646.88

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