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Finding the Fourth Proportional to 30,167.88, 41,632.02 and 16,739.40

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Solution

The fourth proportional to 30,167.88, 41,632.02 and 16,739.40 is: 23,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167.88 : 41,632.02 = 16,739.40 : x
  2. Step 2: Convert to fraction form
    30,167.88/41,632.02 = 16,739.40/x
  3. Step 3: Cross multiply
    30,167.88x = 41,632.02 × 16,739.40
  4. Step 4: Simplify right side
    30,167.88x = 696,895,035.59
  5. Step 5: Solve for x
    x = 696,895,035.59/30,167.88
  6. Step 6: Final answer
    x = 23,100.56

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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.