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Finding the Fourth Proportional to 1,696.26, 2,544.90 and 875.13

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Solution

The fourth proportional to 1,696.26, 2,544.90 and 875.13 is: 1,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.26 : 2,544.90 = 875.13 : x
  2. Step 2: Convert to fraction form
    1,696.26/2,544.90 = 875.13/x
  3. Step 3: Cross multiply
    1,696.26x = 2,544.90 × 875.13
  4. Step 4: Simplify right side
    1,696.26x = 2,227,118.34
  5. Step 5: Solve for x
    x = 2,227,118.34/1,696.26
  6. Step 6: Final answer
    x = 1,312.96

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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.