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Finding the Third Proportional to 371.53 and 783.84

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Solution

The third proportional to 371.53 and 783.84 is: 1,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.53 : 783.84 = 783.84 : x
  2. Step 2: Convert to fraction form
    371.53/783.84 = 783.84/x
  3. Step 3: Cross multiply
    371.53x = 783.84 × 783.84
  4. Step 4: Simplify right side
    371.53x = 614,411.02
  5. Step 5: Solve for x
    x = 614,411.02/371.53
  6. Step 6: Final answer
    x = 1,653.73

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.