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Finding the Fourth Proportional to 7,629.30, 11,446.65 and 7,359.30

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Solution

The fourth proportional to 7,629.30, 11,446.65 and 7,359.30 is: 11,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.30 : 11,446.65 = 7,359.30 : x
  2. Step 2: Convert to fraction form
    7,629.30/11,446.65 = 7,359.30/x
  3. Step 3: Cross multiply
    7,629.30x = 11,446.65 × 7,359.30
  4. Step 4: Simplify right side
    7,629.30x = 84,239,331.35
  5. Step 5: Solve for x
    x = 84,239,331.35/7,629.30
  6. Step 6: Final answer
    x = 11,041.55

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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.