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Finding the Fourth Proportional to 84,765.76, 116,963.76 and 50,766.28

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Solution

The fourth proportional to 84,765.76, 116,963.76 and 50,766.28 is: 70,049.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.76 : 116,963.76 = 50,766.28 : x
  2. Step 2: Convert to fraction form
    84,765.76/116,963.76 = 50,766.28/x
  3. Step 3: Cross multiply
    84,765.76x = 116,963.76 × 50,766.28
  4. Step 4: Simplify right side
    84,765.76x = 5,937,814,990.01
  5. Step 5: Solve for x
    x = 5,937,814,990.01/84,765.76
  6. Step 6: Final answer
    x = 70,049.69

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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.