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Finding the Fourth Proportional to 4,507.99, 6,217.89 and 4,136.20

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Solution

The fourth proportional to 4,507.99, 6,217.89 and 4,136.20 is: 5,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,507.99 : 6,217.89 = 4,136.20 : x
  2. Step 2: Convert to fraction form
    4,507.99/6,217.89 = 4,136.20/x
  3. Step 3: Cross multiply
    4,507.99x = 6,217.89 × 4,136.20
  4. Step 4: Simplify right side
    4,507.99x = 25,718,405.53
  5. Step 5: Solve for x
    x = 25,718,405.53/4,507.99
  6. Step 6: Final answer
    x = 5,705.08

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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.