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Finding the Fourth Proportional to 48,424.77, 72,638.78 and 13,364.73

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Solution

The fourth proportional to 48,424.77, 72,638.78 and 13,364.73 is: 20,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,424.77 : 72,638.78 = 13,364.73 : x
  2. Step 2: Convert to fraction form
    48,424.77/72,638.78 = 13,364.73/x
  3. Step 3: Cross multiply
    48,424.77x = 72,638.78 × 13,364.73
  4. Step 4: Simplify right side
    48,424.77x = 970,797,615.41
  5. Step 5: Solve for x
    x = 970,797,615.41/48,424.77
  6. Step 6: Final answer
    x = 20,047.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.