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Finding the Fourth Proportional to 5,652.38, 7,800.30 and 3,168.38

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Solution

The fourth proportional to 5,652.38, 7,800.30 and 3,168.38 is: 4,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.38 : 7,800.30 = 3,168.38 : x
  2. Step 2: Convert to fraction form
    5,652.38/7,800.30 = 3,168.38/x
  3. Step 3: Cross multiply
    5,652.38x = 7,800.30 × 3,168.38
  4. Step 4: Simplify right side
    5,652.38x = 24,714,275.51
  5. Step 5: Solve for x
    x = 24,714,275.51/5,652.38
  6. Step 6: Final answer
    x = 4,372.37

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Half scale
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Double scale
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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.