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Finding the Fourth Proportional to 5,599.95, 7,728.30 and 3,708.25

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Solution

The fourth proportional to 5,599.95, 7,728.30 and 3,708.25 is: 5,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.95 : 7,728.30 = 3,708.25 : x
  2. Step 2: Convert to fraction form
    5,599.95/7,728.30 = 3,708.25/x
  3. Step 3: Cross multiply
    5,599.95x = 7,728.30 × 3,708.25
  4. Step 4: Simplify right side
    5,599.95x = 28,658,449.15
  5. Step 5: Solve for x
    x = 28,658,449.15/5,599.95
  6. Step 6: Final answer
    x = 5,117.63

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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.