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Finding the Fourth Proportional to 2,558.93, 3,533.04 and 1,931.99

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Solution

The fourth proportional to 2,558.93, 3,533.04 and 1,931.99 is: 2,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.93 : 3,533.04 = 1,931.99 : x
  2. Step 2: Convert to fraction form
    2,558.93/3,533.04 = 1,931.99/x
  3. Step 3: Cross multiply
    2,558.93x = 3,533.04 × 1,931.99
  4. Step 4: Simplify right side
    2,558.93x = 6,825,806.78
  5. Step 5: Solve for x
    x = 6,825,806.78/2,558.93
  6. Step 6: Final answer
    x = 2,667.44

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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.