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Finding the Fourth Proportional to 7,094.64, 9,790.28 and 3,950.80

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Solution

The fourth proportional to 7,094.64, 9,790.28 and 3,950.80 is: 5,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,094.64 : 9,790.28 = 3,950.80 : x
  2. Step 2: Convert to fraction form
    7,094.64/9,790.28 = 3,950.80/x
  3. Step 3: Cross multiply
    7,094.64x = 9,790.28 × 3,950.80
  4. Step 4: Simplify right side
    7,094.64x = 38,679,438.22
  5. Step 5: Solve for x
    x = 38,679,438.22/7,094.64
  6. Step 6: Final answer
    x = 5,451.92

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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.