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Finding the Third Proportional to 30,548 and 45,534

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Solution

The third proportional to 30,548 and 45,534 is: 67,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548 : 45,534 = 45,534 : x
  2. Step 2: Convert to fraction form
    30,548/45,534 = 45,534/x
  3. Step 3: Cross multiply
    30,548x = 45,534 × 45,534
  4. Step 4: Simplify right side
    30,548x = 2,073,345,156
  5. Step 5: Solve for x
    x = 2,073,345,156/30,548
  6. Step 6: Final answer
    x = 67,871.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.