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Finding the Fourth Proportional to 64,451.58, 96,748.02 and 51,209.70

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Solution

The fourth proportional to 64,451.58, 96,748.02 and 51,209.70 is: 76,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,451.58 : 96,748.02 = 51,209.70 : x
  2. Step 2: Convert to fraction form
    64,451.58/96,748.02 = 51,209.70/x
  3. Step 3: Cross multiply
    64,451.58x = 96,748.02 × 51,209.70
  4. Step 4: Simplify right side
    64,451.58x = 4,954,437,079.79
  5. Step 5: Solve for x
    x = 4,954,437,079.79/64,451.58
  6. Step 6: Final answer
    x = 76,870.68

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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.