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Finding the Fourth Proportional to 35,174.25, 48,540.47 and 20,270.25

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Solution

The fourth proportional to 35,174.25, 48,540.47 and 20,270.25 is: 27,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,174.25 : 48,540.47 = 20,270.25 : x
  2. Step 2: Convert to fraction form
    35,174.25/48,540.47 = 20,270.25/x
  3. Step 3: Cross multiply
    35,174.25x = 48,540.47 × 20,270.25
  4. Step 4: Simplify right side
    35,174.25x = 983,927,360.67
  5. Step 5: Solve for x
    x = 983,927,360.67/35,174.25
  6. Step 6: Final answer
    x = 27,972.95

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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.