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Finding the Fourth Proportional to 1,696.11, 2,340.73 and 1,106.63

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Solution

The fourth proportional to 1,696.11, 2,340.73 and 1,106.63 is: 1,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.11 : 2,340.73 = 1,106.63 : x
  2. Step 2: Convert to fraction form
    1,696.11/2,340.73 = 1,106.63/x
  3. Step 3: Cross multiply
    1,696.11x = 2,340.73 × 1,106.63
  4. Step 4: Simplify right side
    1,696.11x = 2,590,322.04
  5. Step 5: Solve for x
    x = 2,590,322.04/1,696.11
  6. Step 6: Final answer
    x = 1,527.21

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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.