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Finding the Fourth Proportional to 30,166.88, 41,630.64 and 16,738.40

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Solution

The fourth proportional to 30,166.88, 41,630.64 and 16,738.40 is: 23,099.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,166.88 : 41,630.64 = 16,738.40 : x
  2. Step 2: Convert to fraction form
    30,166.88/41,630.64 = 16,738.40/x
  3. Step 3: Cross multiply
    30,166.88x = 41,630.64 × 16,738.40
  4. Step 4: Simplify right side
    30,166.88x = 696,830,304.58
  5. Step 5: Solve for x
    x = 696,830,304.58/30,166.88
  6. Step 6: Final answer
    x = 23,099.18

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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.