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Finding the Fourth Proportional to 6,627.45, 9,946.95 and 3,509.70

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Solution

The fourth proportional to 6,627.45, 9,946.95 and 3,509.70 is: 5,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.45 : 9,946.95 = 3,509.70 : x
  2. Step 2: Convert to fraction form
    6,627.45/9,946.95 = 3,509.70/x
  3. Step 3: Cross multiply
    6,627.45x = 9,946.95 × 3,509.70
  4. Step 4: Simplify right side
    6,627.45x = 34,910,810.42
  5. Step 5: Solve for x
    x = 34,910,810.42/6,627.45
  6. Step 6: Final answer
    x = 5,267.61

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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.