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Finding the Third Proportional to 1,653.75 and 2,390.06

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Solution

The third proportional to 1,653.75 and 2,390.06 is: 3,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.75 : 2,390.06 = 2,390.06 : x
  2. Step 2: Convert to fraction form
    1,653.75/2,390.06 = 2,390.06/x
  3. Step 3: Cross multiply
    1,653.75x = 2,390.06 × 2,390.06
  4. Step 4: Simplify right side
    1,653.75x = 5,712,398.75
  5. Step 5: Solve for x
    x = 5,712,398.75/1,653.75
  6. Step 6: Final answer
    x = 3,454.21

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.