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Finding the Fourth Proportional to 64,497.68, 89,012.36 and 35,822.84

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Solution

The fourth proportional to 64,497.68, 89,012.36 and 35,822.84 is: 49,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,497.68 : 89,012.36 = 35,822.84 : x
  2. Step 2: Convert to fraction form
    64,497.68/89,012.36 = 35,822.84/x
  3. Step 3: Cross multiply
    64,497.68x = 89,012.36 × 35,822.84
  4. Step 4: Simplify right side
    64,497.68x = 3,188,675,530.30
  5. Step 5: Solve for x
    x = 3,188,675,530.30/64,497.68
  6. Step 6: Final answer
    x = 49,438.61

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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.