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Finding the Fourth Proportional to 61,921.50, 85,452.51 and 35,063.43

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Solution

The fourth proportional to 61,921.50, 85,452.51 and 35,063.43 is: 48,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.50 : 85,452.51 = 35,063.43 : x
  2. Step 2: Convert to fraction form
    61,921.50/85,452.51 = 35,063.43/x
  3. Step 3: Cross multiply
    61,921.50x = 85,452.51 × 35,063.43
  4. Step 4: Simplify right side
    61,921.50x = 2,996,258,102.71
  5. Step 5: Solve for x
    x = 2,996,258,102.71/61,921.50
  6. Step 6: Final answer
    x = 48,388.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.