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Finding the Fourth Proportional to 3,336.77, 5,001.74 and 1,688.32

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Solution

The fourth proportional to 3,336.77, 5,001.74 and 1,688.32 is: 2,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.77 : 5,001.74 = 1,688.32 : x
  2. Step 2: Convert to fraction form
    3,336.77/5,001.74 = 1,688.32/x
  3. Step 3: Cross multiply
    3,336.77x = 5,001.74 × 1,688.32
  4. Step 4: Simplify right side
    3,336.77x = 8,444,537.68
  5. Step 5: Solve for x
    x = 8,444,537.68/3,336.77
  6. Step 6: Final answer
    x = 2,530.75

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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.