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Finding the Fourth Proportional to 5,653.62, 7,801.98 and 3,135.75

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Solution

The fourth proportional to 5,653.62, 7,801.98 and 3,135.75 is: 4,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.62 : 7,801.98 = 3,135.75 : x
  2. Step 2: Convert to fraction form
    5,653.62/7,801.98 = 3,135.75/x
  3. Step 3: Cross multiply
    5,653.62x = 7,801.98 × 3,135.75
  4. Step 4: Simplify right side
    5,653.62x = 24,465,058.79
  5. Step 5: Solve for x
    x = 24,465,058.79/5,653.62
  6. Step 6: Final answer
    x = 4,327.33

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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.