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Finding the Fourth Proportional to 17,208.80, 25,780.80 and 16,042.40

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Solution

The fourth proportional to 17,208.80, 25,780.80 and 16,042.40 is: 24,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.80 : 25,780.80 = 16,042.40 : x
  2. Step 2: Convert to fraction form
    17,208.80/25,780.80 = 16,042.40/x
  3. Step 3: Cross multiply
    17,208.80x = 25,780.80 × 16,042.40
  4. Step 4: Simplify right side
    17,208.80x = 413,585,905.92
  5. Step 5: Solve for x
    x = 413,585,905.92/17,208.80
  6. Step 6: Final answer
    x = 24,033.40

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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.