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Finding the Third Proportional to 1,415.29 and 3,103.95

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Solution

The third proportional to 1,415.29 and 3,103.95 is: 6,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.29 : 3,103.95 = 3,103.95 : x
  2. Step 2: Convert to fraction form
    1,415.29/3,103.95 = 3,103.95/x
  3. Step 3: Cross multiply
    1,415.29x = 3,103.95 × 3,103.95
  4. Step 4: Simplify right side
    1,415.29x = 9,634,476.50
  5. Step 5: Solve for x
    x = 9,634,476.50/1,415.29
  6. Step 6: Final answer
    x = 6,807.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.