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Finding the Third Proportional to 5,056 and 8,790

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Solution

The third proportional to 5,056 and 8,790 is: 15,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056 : 8,790 = 8,790 : x
  2. Step 2: Convert to fraction form
    5,056/8,790 = 8,790/x
  3. Step 3: Cross multiply
    5,056x = 8,790 × 8,790
  4. Step 4: Simplify right side
    5,056x = 77,264,100
  5. Step 5: Solve for x
    x = 77,264,100/5,056
  6. Step 6: Final answer
    x = 15,281.67

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.