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Finding the Fourth Proportional to 35,294.44, 48,693.90 and 21,851.68

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Solution

The fourth proportional to 35,294.44, 48,693.90 and 21,851.68 is: 30,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,294.44 : 48,693.90 = 21,851.68 : x
  2. Step 2: Convert to fraction form
    35,294.44/48,693.90 = 21,851.68/x
  3. Step 3: Cross multiply
    35,294.44x = 48,693.90 × 21,851.68
  4. Step 4: Simplify right side
    35,294.44x = 1,064,043,520.75
  5. Step 5: Solve for x
    x = 1,064,043,520.75/35,294.44
  6. Step 6: Final answer
    x = 30,147.62

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1.5x scale

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.