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Finding the Fourth Proportional to 5,601.88, 7,730.60 and 3,117.88

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Solution

The fourth proportional to 5,601.88, 7,730.60 and 3,117.88 is: 4,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,601.88 : 7,730.60 = 3,117.88 : x
  2. Step 2: Convert to fraction form
    5,601.88/7,730.60 = 3,117.88/x
  3. Step 3: Cross multiply
    5,601.88x = 7,730.60 × 3,117.88
  4. Step 4: Simplify right side
    5,601.88x = 24,103,083.13
  5. Step 5: Solve for x
    x = 24,103,083.13/5,601.88
  6. Step 6: Final answer
    x = 4,302.68

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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.