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Finding the Fourth Proportional to 76,649.59, 114,974.89 and 26,729.49

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Solution

The fourth proportional to 76,649.59, 114,974.89 and 26,729.49 is: 40,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,649.59 : 114,974.89 = 26,729.49 : x
  2. Step 2: Convert to fraction form
    76,649.59/114,974.89 = 26,729.49/x
  3. Step 3: Cross multiply
    76,649.59x = 114,974.89 × 26,729.49
  4. Step 4: Simplify right side
    76,649.59x = 3,073,220,172.51
  5. Step 5: Solve for x
    x = 3,073,220,172.51/76,649.59
  6. Step 6: Final answer
    x = 40,094.41

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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.