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Finding the Fourth Proportional to 10,640.63, 15,969.45 and 4,797.70

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Solution

The fourth proportional to 10,640.63, 15,969.45 and 4,797.70 is: 7,200.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.63 : 15,969.45 = 4,797.70 : x
  2. Step 2: Convert to fraction form
    10,640.63/15,969.45 = 4,797.70/x
  3. Step 3: Cross multiply
    10,640.63x = 15,969.45 × 4,797.70
  4. Step 4: Simplify right side
    10,640.63x = 76,616,608.33
  5. Step 5: Solve for x
    x = 76,616,608.33/10,640.63
  6. Step 6: Final answer
    x = 7,200.38

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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.