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Finding the Fourth Proportional to 30,244.96, 41,738.16 and 20,797.12

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Solution

The fourth proportional to 30,244.96, 41,738.16 and 20,797.12 is: 28,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,244.96 : 41,738.16 = 20,797.12 : x
  2. Step 2: Convert to fraction form
    30,244.96/41,738.16 = 20,797.12/x
  3. Step 3: Cross multiply
    30,244.96x = 41,738.16 × 20,797.12
  4. Step 4: Simplify right side
    30,244.96x = 868,033,522.10
  5. Step 5: Solve for x
    x = 868,033,522.10/30,244.96
  6. Step 6: Final answer
    x = 28,700.10

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