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Finding the Fourth Proportional to 3,655.92, 5,484.60 and 3,009.36

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Solution

The fourth proportional to 3,655.92, 5,484.60 and 3,009.36 is: 4,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.92 : 5,484.60 = 3,009.36 : x
  2. Step 2: Convert to fraction form
    3,655.92/5,484.60 = 3,009.36/x
  3. Step 3: Cross multiply
    3,655.92x = 5,484.60 × 3,009.36
  4. Step 4: Simplify right side
    3,655.92x = 16,505,135.86
  5. Step 5: Solve for x
    x = 16,505,135.86/3,655.92
  6. Step 6: Final answer
    x = 4,514.63

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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.