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Finding the Third Proportional to 1,875.66 and 2,836.90

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Solution

The third proportional to 1,875.66 and 2,836.90 is: 4,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.66 : 2,836.90 = 2,836.90 : x
  2. Step 2: Convert to fraction form
    1,875.66/2,836.90 = 2,836.90/x
  3. Step 3: Cross multiply
    1,875.66x = 2,836.90 × 2,836.90
  4. Step 4: Simplify right side
    1,875.66x = 8,047,992.74
  5. Step 5: Solve for x
    x = 8,047,992.74/1,875.66
  6. Step 6: Final answer
    x = 4,290.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.