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Finding the Fourth Proportional to 29,671.80, 40,946.06 and 16,929.10

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Solution

The fourth proportional to 29,671.80, 40,946.06 and 16,929.10 is: 23,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.80 : 40,946.06 = 16,929.10 : x
  2. Step 2: Convert to fraction form
    29,671.80/40,946.06 = 16,929.10/x
  3. Step 3: Cross multiply
    29,671.80x = 40,946.06 × 16,929.10
  4. Step 4: Simplify right side
    29,671.80x = 693,180,057.79
  5. Step 5: Solve for x
    x = 693,180,057.79/29,671.80
  6. Step 6: Final answer
    x = 23,361.58

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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.