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Finding the Fourth Proportional to 17,690.55, 26,535.90 and 16,803.70

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Solution

The fourth proportional to 17,690.55, 26,535.90 and 16,803.70 is: 25,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.55 : 26,535.90 = 16,803.70 : x
  2. Step 2: Convert to fraction form
    17,690.55/26,535.90 = 16,803.70/x
  3. Step 3: Cross multiply
    17,690.55x = 26,535.90 × 16,803.70
  4. Step 4: Simplify right side
    17,690.55x = 445,901,302.83
  5. Step 5: Solve for x
    x = 445,901,302.83/17,690.55
  6. Step 6: Final answer
    x = 25,205.62

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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.