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Finding the Fourth Proportional to 64,888.76, 96,863.80 and 57,015.56

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Solution

The fourth proportional to 64,888.76, 96,863.80 and 57,015.56 is: 85,110.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,888.76 : 96,863.80 = 57,015.56 : x
  2. Step 2: Convert to fraction form
    64,888.76/96,863.80 = 57,015.56/x
  3. Step 3: Cross multiply
    64,888.76x = 96,863.80 × 57,015.56
  4. Step 4: Simplify right side
    64,888.76x = 5,522,743,800.73
  5. Step 5: Solve for x
    x = 5,522,743,800.73/64,888.76
  6. Step 6: Final answer
    x = 85,110.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.