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Finding the Fourth Proportional to 4,875.36, 7,343.72 and 4,439.38

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Solution

The fourth proportional to 4,875.36, 7,343.72 and 4,439.38 is: 6,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.36 : 7,343.72 = 4,439.38 : x
  2. Step 2: Convert to fraction form
    4,875.36/7,343.72 = 4,439.38/x
  3. Step 3: Cross multiply
    4,875.36x = 7,343.72 × 4,439.38
  4. Step 4: Simplify right side
    4,875.36x = 32,601,563.69
  5. Step 5: Solve for x
    x = 32,601,563.69/4,875.36
  6. Step 6: Final answer
    x = 6,687.01

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.