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Finding the Third Proportional to 4,574 and 9,878

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Solution

The third proportional to 4,574 and 9,878 is: 21,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,574 : 9,878 = 9,878 : x
  2. Step 2: Convert to fraction form
    4,574/9,878 = 9,878/x
  3. Step 3: Cross multiply
    4,574x = 9,878 × 9,878
  4. Step 4: Simplify right side
    4,574x = 97,574,884
  5. Step 5: Solve for x
    x = 97,574,884/4,574
  6. Step 6: Final answer
    x = 21,332.51

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.