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Finding the Fourth Proportional to 4,125.67, 5,687.81 and 2,944.69

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Solution

The fourth proportional to 4,125.67, 5,687.81 and 2,944.69 is: 4,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.67 : 5,687.81 = 2,944.69 : x
  2. Step 2: Convert to fraction form
    4,125.67/5,687.81 = 2,944.69/x
  3. Step 3: Cross multiply
    4,125.67x = 5,687.81 × 2,944.69
  4. Step 4: Simplify right side
    4,125.67x = 16,748,822.51
  5. Step 5: Solve for x
    x = 16,748,822.51/4,125.67
  6. Step 6: Final answer
    x = 4,059.66

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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.