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Finding the Fourth Proportional to 6,630.91, 9,948.79 and 3,513.22

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Solution

The fourth proportional to 6,630.91, 9,948.79 and 3,513.22 is: 5,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.91 : 9,948.79 = 3,513.22 : x
  2. Step 2: Convert to fraction form
    6,630.91/9,948.79 = 3,513.22/x
  3. Step 3: Cross multiply
    6,630.91x = 9,948.79 × 3,513.22
  4. Step 4: Simplify right side
    6,630.91x = 34,952,288.00
  5. Step 5: Solve for x
    x = 34,952,288.00/6,630.91
  6. Step 6: Final answer
    x = 5,271.11

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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.