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Finding the Fourth Proportional to 9,993.42, 14,990.40 and 2,597.72

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Solution

The fourth proportional to 9,993.42, 14,990.40 and 2,597.72 is: 3,896.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.42 : 14,990.40 = 2,597.72 : x
  2. Step 2: Convert to fraction form
    9,993.42/14,990.40 = 2,597.72/x
  3. Step 3: Cross multiply
    9,993.42x = 14,990.40 × 2,597.72
  4. Step 4: Simplify right side
    9,993.42x = 38,940,786.94
  5. Step 5: Solve for x
    x = 38,940,786.94/9,993.42
  6. Step 6: Final answer
    x = 3,896.64

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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.