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Finding the Fourth Proportional to 35,390.72, 48,839.60 and 19,474.88

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Solution

The fourth proportional to 35,390.72, 48,839.60 and 19,474.88 is: 26,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.72 : 48,839.60 = 19,474.88 : x
  2. Step 2: Convert to fraction form
    35,390.72/48,839.60 = 19,474.88/x
  3. Step 3: Cross multiply
    35,390.72x = 48,839.60 × 19,474.88
  4. Step 4: Simplify right side
    35,390.72x = 951,145,349.25
  5. Step 5: Solve for x
    x = 951,145,349.25/35,390.72
  6. Step 6: Final answer
    x = 26,875.56

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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.