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Finding the Fourth Proportional to 3,093.32, 4,639.91 and 753.33

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Solution

The fourth proportional to 3,093.32, 4,639.91 and 753.33 is: 1,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.32 : 4,639.91 = 753.33 : x
  2. Step 2: Convert to fraction form
    3,093.32/4,639.91 = 753.33/x
  3. Step 3: Cross multiply
    3,093.32x = 4,639.91 × 753.33
  4. Step 4: Simplify right side
    3,093.32x = 3,495,399.86
  5. Step 5: Solve for x
    x = 3,495,399.86/3,093.32
  6. Step 6: Final answer
    x = 1,129.98

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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.