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Finding the Third Proportional to 7,428 and 14,127

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Solution

The third proportional to 7,428 and 14,127 is: 26,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428 : 14,127 = 14,127 : x
  2. Step 2: Convert to fraction form
    7,428/14,127 = 14,127/x
  3. Step 3: Cross multiply
    7,428x = 14,127 × 14,127
  4. Step 4: Simplify right side
    7,428x = 199,572,129
  5. Step 5: Solve for x
    x = 199,572,129/7,428
  6. Step 6: Final answer
    x = 26,867.55

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.