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Finding the Third Proportional to 5,064 and 7,928

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Solution

The third proportional to 5,064 and 7,928 is: 12,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,064 : 7,928 = 7,928 : x
  2. Step 2: Convert to fraction form
    5,064/7,928 = 7,928/x
  3. Step 3: Cross multiply
    5,064x = 7,928 × 7,928
  4. Step 4: Simplify right side
    5,064x = 62,853,184
  5. Step 5: Solve for x
    x = 62,853,184/5,064
  6. Step 6: Final answer
    x = 12,411.77

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.