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Finding the Fourth Proportional to 30,309.22, 41,828.02 and 16,880.48

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Solution

The fourth proportional to 30,309.22, 41,828.02 and 16,880.48 is: 23,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.22 : 41,828.02 = 16,880.48 : x
  2. Step 2: Convert to fraction form
    30,309.22/41,828.02 = 16,880.48/x
  3. Step 3: Cross multiply
    30,309.22x = 41,828.02 × 16,880.48
  4. Step 4: Simplify right side
    30,309.22x = 706,076,950.48
  5. Step 5: Solve for x
    x = 706,076,950.48/30,309.22
  6. Step 6: Final answer
    x = 23,295.78

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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.