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Finding the Fourth Proportional to 17,288.70, 25,884.45 and 16,802.70

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Solution

The fourth proportional to 17,288.70, 25,884.45 and 16,802.70 is: 25,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,288.70 : 25,884.45 = 16,802.70 : x
  2. Step 2: Convert to fraction form
    17,288.70/25,884.45 = 16,802.70/x
  3. Step 3: Cross multiply
    17,288.70x = 25,884.45 × 16,802.70
  4. Step 4: Simplify right side
    17,288.70x = 434,928,648.02
  5. Step 5: Solve for x
    x = 434,928,648.02/17,288.70
  6. Step 6: Final answer
    x = 25,156.82

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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.