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Finding the Third Proportional to 7,136 and 9,424

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Solution

The third proportional to 7,136 and 9,424 is: 12,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136 : 9,424 = 9,424 : x
  2. Step 2: Convert to fraction form
    7,136/9,424 = 9,424/x
  3. Step 3: Cross multiply
    7,136x = 9,424 × 9,424
  4. Step 4: Simplify right side
    7,136x = 88,811,776
  5. Step 5: Solve for x
    x = 88,811,776/7,136
  6. Step 6: Final answer
    x = 12,445.60

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.