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Finding the Fourth Proportional to 27,335.80, 40,938.90 and 16,838.20

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Solution

The fourth proportional to 27,335.80, 40,938.90 and 16,838.20 is: 25,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,335.80 : 40,938.90 = 16,838.20 : x
  2. Step 2: Convert to fraction form
    27,335.80/40,938.90 = 16,838.20/x
  3. Step 3: Cross multiply
    27,335.80x = 40,938.90 × 16,838.20
  4. Step 4: Simplify right side
    27,335.80x = 689,337,385.98
  5. Step 5: Solve for x
    x = 689,337,385.98/27,335.80
  6. Step 6: Final answer
    x = 25,217.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.