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Finding the Third Proportional to 48,590 and 64,576

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Solution

The third proportional to 48,590 and 64,576 is: 85,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,590 : 64,576 = 64,576 : x
  2. Step 2: Convert to fraction form
    48,590/64,576 = 64,576/x
  3. Step 3: Cross multiply
    48,590x = 64,576 × 64,576
  4. Step 4: Simplify right side
    48,590x = 4,170,059,776
  5. Step 5: Solve for x
    x = 4,170,059,776/48,590
  6. Step 6: Final answer
    x = 85,821.36

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.