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Finding the Fourth Proportional to 7,518.72, 11,279.16 and 2,325

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Solution

The fourth proportional to 7,518.72, 11,279.16 and 2,325 is: 3,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.72 : 11,279.16 = 2,325 : x
  2. Step 2: Convert to fraction form
    7,518.72/11,279.16 = 2,325/x
  3. Step 3: Cross multiply
    7,518.72x = 11,279.16 × 2,325
  4. Step 4: Simplify right side
    7,518.72x = 26,224,047
  5. Step 5: Solve for x
    x = 26,224,047/7,518.72
  6. Step 6: Final answer
    x = 3,487.83

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