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Finding the Fourth Proportional to 2,083.14, 3,124.71 and 696.51

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Solution

The fourth proportional to 2,083.14, 3,124.71 and 696.51 is: 1,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.14 : 3,124.71 = 696.51 : x
  2. Step 2: Convert to fraction form
    2,083.14/3,124.71 = 696.51/x
  3. Step 3: Cross multiply
    2,083.14x = 3,124.71 × 696.51
  4. Step 4: Simplify right side
    2,083.14x = 2,176,391.76
  5. Step 5: Solve for x
    x = 2,176,391.76/2,083.14
  6. Step 6: Final answer
    x = 1,044.77

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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.