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Finding the Fourth Proportional to 30,353.34, 41,886.07 and 16,921.99

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Solution

The fourth proportional to 30,353.34, 41,886.07 and 16,921.99 is: 23,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,353.34 : 41,886.07 = 16,921.99 : x
  2. Step 2: Convert to fraction form
    30,353.34/41,886.07 = 16,921.99/x
  3. Step 3: Cross multiply
    30,353.34x = 41,886.07 × 16,921.99
  4. Step 4: Simplify right side
    30,353.34x = 708,795,657.68
  5. Step 5: Solve for x
    x = 708,795,657.68/30,353.34
  6. Step 6: Final answer
    x = 23,351.49

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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.