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Finding the Fourth Proportional to 1,833.07, 2,529.57 and 993.76

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Solution

The fourth proportional to 1,833.07, 2,529.57 and 993.76 is: 1,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.07 : 2,529.57 = 993.76 : x
  2. Step 2: Convert to fraction form
    1,833.07/2,529.57 = 993.76/x
  3. Step 3: Cross multiply
    1,833.07x = 2,529.57 × 993.76
  4. Step 4: Simplify right side
    1,833.07x = 2,513,772.34
  5. Step 5: Solve for x
    x = 2,513,772.34/1,833.07
  6. Step 6: Final answer
    x = 1,371.35

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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.