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Finding the Fourth Proportional to 30,393.45, 41,945.09 and 16,967.34

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Solution

The fourth proportional to 30,393.45, 41,945.09 and 16,967.34 is: 23,416.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.45 : 41,945.09 = 16,967.34 : x
  2. Step 2: Convert to fraction form
    30,393.45/41,945.09 = 16,967.34/x
  3. Step 3: Cross multiply
    30,393.45x = 41,945.09 × 16,967.34
  4. Step 4: Simplify right side
    30,393.45x = 711,696,518.52
  5. Step 5: Solve for x
    x = 711,696,518.52/30,393.45
  6. Step 6: Final answer
    x = 23,416.11

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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.