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Finding the Fourth Proportional to 7,265.70, 10,908.68 and 4,649.40

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Solution

The fourth proportional to 7,265.70, 10,908.68 and 4,649.40 is: 6,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,265.70 : 10,908.68 = 4,649.40 : x
  2. Step 2: Convert to fraction form
    7,265.70/10,908.68 = 4,649.40/x
  3. Step 3: Cross multiply
    7,265.70x = 10,908.68 × 4,649.40
  4. Step 4: Simplify right side
    7,265.70x = 50,718,793.55
  5. Step 5: Solve for x
    x = 50,718,793.55/7,265.70
  6. Step 6: Final answer
    x = 6,980.58

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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.