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Finding the Third Proportional to 42,921 and 93,471.75

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Solution

The third proportional to 42,921 and 93,471.75 is: 203,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,921 : 93,471.75 = 93,471.75 : x
  2. Step 2: Convert to fraction form
    42,921/93,471.75 = 93,471.75/x
  3. Step 3: Cross multiply
    42,921x = 93,471.75 × 93,471.75
  4. Step 4: Simplify right side
    42,921x = 8,736,968,048.06
  5. Step 5: Solve for x
    x = 8,736,968,048.06/42,921
  6. Step 6: Final answer
    x = 203,559.28

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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.