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Finding the Third Proportional to 18,574 and 40,534

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Solution

The third proportional to 18,574 and 40,534 is: 88,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574 : 40,534 = 40,534 : x
  2. Step 2: Convert to fraction form
    18,574/40,534 = 40,534/x
  3. Step 3: Cross multiply
    18,574x = 40,534 × 40,534
  4. Step 4: Simplify right side
    18,574x = 1,643,005,156
  5. Step 5: Solve for x
    x = 1,643,005,156/18,574
  6. Step 6: Final answer
    x = 88,457.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.