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Finding the Fourth Proportional to 7,958.39, 11,946.67 and 6,205.28

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Solution

The fourth proportional to 7,958.39, 11,946.67 and 6,205.28 is: 9,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.39 : 11,946.67 = 6,205.28 : x
  2. Step 2: Convert to fraction form
    7,958.39/11,946.67 = 6,205.28/x
  3. Step 3: Cross multiply
    7,958.39x = 11,946.67 × 6,205.28
  4. Step 4: Simplify right side
    7,958.39x = 74,132,357.17
  5. Step 5: Solve for x
    x = 74,132,357.17/7,958.39
  6. Step 6: Final answer
    x = 9,315.00

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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.