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Finding the Fourth Proportional to 30,242.64, 41,734.53 and 16,814.46

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Solution

The fourth proportional to 30,242.64, 41,734.53 and 16,814.46 is: 23,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,242.64 : 41,734.53 = 16,814.46 : x
  2. Step 2: Convert to fraction form
    30,242.64/41,734.53 = 16,814.46/x
  3. Step 3: Cross multiply
    30,242.64x = 41,734.53 × 16,814.46
  4. Step 4: Simplify right side
    30,242.64x = 701,743,585.30
  5. Step 5: Solve for x
    x = 701,743,585.30/30,242.64
  6. Step 6: Final answer
    x = 23,203.78

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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.