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Finding the Fourth Proportional to 30,348.56, 41,881.04 and 16,919.54

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Solution

The fourth proportional to 30,348.56, 41,881.04 and 16,919.54 is: 23,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.56 : 41,881.04 = 16,919.54 : x
  2. Step 2: Convert to fraction form
    30,348.56/41,881.04 = 16,919.54/x
  3. Step 3: Cross multiply
    30,348.56x = 41,881.04 × 16,919.54
  4. Step 4: Simplify right side
    30,348.56x = 708,607,637.52
  5. Step 5: Solve for x
    x = 708,607,637.52/30,348.56
  6. Step 6: Final answer
    x = 23,348.97

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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.