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Finding the Fourth Proportional to 30,392.38, 41,941.53 and 16,963.63

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Solution

The fourth proportional to 30,392.38, 41,941.53 and 16,963.63 is: 23,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,392.38 : 41,941.53 = 16,963.63 : x
  2. Step 2: Convert to fraction form
    30,392.38/41,941.53 = 16,963.63/x
  3. Step 3: Cross multiply
    30,392.38x = 41,941.53 × 16,963.63
  4. Step 4: Simplify right side
    30,392.38x = 711,480,740.21
  5. Step 5: Solve for x
    x = 711,480,740.21/30,392.38
  6. Step 6: Final answer
    x = 23,409.84

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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.