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Finding the Fourth Proportional to 84,791.60, 117,017.94 and 48,983.12

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Solution

The fourth proportional to 84,791.60, 117,017.94 and 48,983.12 is: 67,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,791.60 : 117,017.94 = 48,983.12 : x
  2. Step 2: Convert to fraction form
    84,791.60/117,017.94 = 48,983.12/x
  3. Step 3: Cross multiply
    84,791.60x = 117,017.94 × 48,983.12
  4. Step 4: Simplify right side
    84,791.60x = 5,731,903,797.17
  5. Step 5: Solve for x
    x = 5,731,903,797.17/84,791.60
  6. Step 6: Final answer
    x = 67,599.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.