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Finding the Third Proportional to 5,748 and 8,787

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Solution

The third proportional to 5,748 and 8,787 is: 13,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748 : 8,787 = 8,787 : x
  2. Step 2: Convert to fraction form
    5,748/8,787 = 8,787/x
  3. Step 3: Cross multiply
    5,748x = 8,787 × 8,787
  4. Step 4: Simplify right side
    5,748x = 77,211,369
  5. Step 5: Solve for x
    x = 77,211,369/5,748
  6. Step 6: Final answer
    x = 13,432.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.