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Finding the Fourth Proportional to 66,883.47, 100,288.94 and 29,399.69

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Solution

The fourth proportional to 66,883.47, 100,288.94 and 29,399.69 is: 44,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883.47 : 100,288.94 = 29,399.69 : x
  2. Step 2: Convert to fraction form
    66,883.47/100,288.94 = 29,399.69/x
  3. Step 3: Cross multiply
    66,883.47x = 100,288.94 × 29,399.69
  4. Step 4: Simplify right side
    66,883.47x = 2,948,463,097.99
  5. Step 5: Solve for x
    x = 2,948,463,097.99/66,883.47
  6. Step 6: Final answer
    x = 44,083.58

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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.