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Finding the Third Proportional to 31,548 and 48,840

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Solution

The third proportional to 31,548 and 48,840 is: 75,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548 : 48,840 = 48,840 : x
  2. Step 2: Convert to fraction form
    31,548/48,840 = 48,840/x
  3. Step 3: Cross multiply
    31,548x = 48,840 × 48,840
  4. Step 4: Simplify right side
    31,548x = 2,385,345,600
  5. Step 5: Solve for x
    x = 2,385,345,600/31,548
  6. Step 6: Final answer
    x = 75,610.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.