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Finding the Fourth Proportional to 35,309.76, 48,728.31 and 19,394.55

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Solution

The fourth proportional to 35,309.76, 48,728.31 and 19,394.55 is: 26,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,309.76 : 48,728.31 = 19,394.55 : x
  2. Step 2: Convert to fraction form
    35,309.76/48,728.31 = 19,394.55/x
  3. Step 3: Cross multiply
    35,309.76x = 48,728.31 × 19,394.55
  4. Step 4: Simplify right side
    35,309.76x = 945,063,644.71
  5. Step 5: Solve for x
    x = 945,063,644.71/35,309.76
  6. Step 6: Final answer
    x = 26,764.94

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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.