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Finding the Fourth Proportional to 1,696.14, 2,340.39 and 1,137.54

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Solution

The fourth proportional to 1,696.14, 2,340.39 and 1,137.54 is: 1,569.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.14 : 2,340.39 = 1,137.54 : x
  2. Step 2: Convert to fraction form
    1,696.14/2,340.39 = 1,137.54/x
  3. Step 3: Cross multiply
    1,696.14x = 2,340.39 × 1,137.54
  4. Step 4: Simplify right side
    1,696.14x = 2,662,300.28
  5. Step 5: Solve for x
    x = 2,662,300.28/1,696.14
  6. Step 6: Final answer
    x = 1,569.62

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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.