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Finding the Fourth Proportional to 7,649.98, 11,472.54 and 2,969.66

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Solution

The fourth proportional to 7,649.98, 11,472.54 and 2,969.66 is: 4,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.98 : 11,472.54 = 2,969.66 : x
  2. Step 2: Convert to fraction form
    7,649.98/11,472.54 = 2,969.66/x
  3. Step 3: Cross multiply
    7,649.98x = 11,472.54 × 2,969.66
  4. Step 4: Simplify right side
    7,649.98x = 34,069,543.14
  5. Step 5: Solve for x
    x = 34,069,543.14/7,649.98
  6. Step 6: Final answer
    x = 4,453.55

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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.