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Finding the Fourth Proportional to 2,336.97, 3,505.80 and 693.32

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Solution

The fourth proportional to 2,336.97, 3,505.80 and 693.32 is: 1,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.97 : 3,505.80 = 693.32 : x
  2. Step 2: Convert to fraction form
    2,336.97/3,505.80 = 693.32/x
  3. Step 3: Cross multiply
    2,336.97x = 3,505.80 × 693.32
  4. Step 4: Simplify right side
    2,336.97x = 2,430,641.26
  5. Step 5: Solve for x
    x = 2,430,641.26/2,336.97
  6. Step 6: Final answer
    x = 1,040.08

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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.