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Finding the Fourth Proportional to 47,297.80, 70,919.70 and 17,716.60

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Solution

The fourth proportional to 47,297.80, 70,919.70 and 17,716.60 is: 26,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,297.80 : 70,919.70 = 17,716.60 : x
  2. Step 2: Convert to fraction form
    47,297.80/70,919.70 = 17,716.60/x
  3. Step 3: Cross multiply
    47,297.80x = 70,919.70 × 17,716.60
  4. Step 4: Simplify right side
    47,297.80x = 1,256,455,957.02
  5. Step 5: Solve for x
    x = 1,256,455,957.02/47,297.80
  6. Step 6: Final answer
    x = 26,564.79

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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.