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Finding the Fourth Proportional to 4,998.74, 7,492.42 and 2,221.24

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Solution

The fourth proportional to 4,998.74, 7,492.42 and 2,221.24 is: 3,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.74 : 7,492.42 = 2,221.24 : x
  2. Step 2: Convert to fraction form
    4,998.74/7,492.42 = 2,221.24/x
  3. Step 3: Cross multiply
    4,998.74x = 7,492.42 × 2,221.24
  4. Step 4: Simplify right side
    4,998.74x = 16,642,463.00
  5. Step 5: Solve for x
    x = 16,642,463.00/4,998.74
  6. Step 6: Final answer
    x = 3,329.33

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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.