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Finding the Fourth Proportional to 7,522.99, 11,284.74 and 3,572.21

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Solution

The fourth proportional to 7,522.99, 11,284.74 and 3,572.21 is: 5,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,522.99 : 11,284.74 = 3,572.21 : x
  2. Step 2: Convert to fraction form
    7,522.99/11,284.74 = 3,572.21/x
  3. Step 3: Cross multiply
    7,522.99x = 11,284.74 × 3,572.21
  4. Step 4: Simplify right side
    7,522.99x = 40,311,461.08
  5. Step 5: Solve for x
    x = 40,311,461.08/7,522.99
  6. Step 6: Final answer
    x = 5,358.44

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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.