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Finding the Third Proportional to 56,448 and 76,887

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Solution

The third proportional to 56,448 and 76,887 is: 104,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,448 : 76,887 = 76,887 : x
  2. Step 2: Convert to fraction form
    56,448/76,887 = 76,887/x
  3. Step 3: Cross multiply
    56,448x = 76,887 × 76,887
  4. Step 4: Simplify right side
    56,448x = 5,911,610,769
  5. Step 5: Solve for x
    x = 5,911,610,769/56,448
  6. Step 6: Final answer
    x = 104,726.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.