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Finding the Fourth Proportional to 4,915.93, 7,373.97 and 1,993.57

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Solution

The fourth proportional to 4,915.93, 7,373.97 and 1,993.57 is: 2,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.93 : 7,373.97 = 1,993.57 : x
  2. Step 2: Convert to fraction form
    4,915.93/7,373.97 = 1,993.57/x
  3. Step 3: Cross multiply
    4,915.93x = 7,373.97 × 1,993.57
  4. Step 4: Simplify right side
    4,915.93x = 14,700,525.37
  5. Step 5: Solve for x
    x = 14,700,525.37/4,915.93
  6. Step 6: Final answer
    x = 2,990.39

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1.5x scale

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.