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Finding the Fourth Proportional to 64,465.43, 96,768.86 and 51,223.55

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Solution

The fourth proportional to 64,465.43, 96,768.86 and 51,223.55 is: 76,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,465.43 : 96,768.86 = 51,223.55 : x
  2. Step 2: Convert to fraction form
    64,465.43/96,768.86 = 51,223.55/x
  3. Step 3: Cross multiply
    64,465.43x = 96,768.86 × 51,223.55
  4. Step 4: Simplify right side
    64,465.43x = 4,956,844,538.65
  5. Step 5: Solve for x
    x = 4,956,844,538.65/64,465.43
  6. Step 6: Final answer
    x = 76,891.51

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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.