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Finding the Fourth Proportional to 1,916.73, 2,875.84 and 1,373.22

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Solution

The fourth proportional to 1,916.73, 2,875.84 and 1,373.22 is: 2,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.73 : 2,875.84 = 1,373.22 : x
  2. Step 2: Convert to fraction form
    1,916.73/2,875.84 = 1,373.22/x
  3. Step 3: Cross multiply
    1,916.73x = 2,875.84 × 1,373.22
  4. Step 4: Simplify right side
    1,916.73x = 3,949,157.57
  5. Step 5: Solve for x
    x = 3,949,157.57/1,916.73
  6. Step 6: Final answer
    x = 2,060.36

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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.