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Finding the Fourth Proportional to 17,706.99, 26,543.21 and 8,479.47

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Solution

The fourth proportional to 17,706.99, 26,543.21 and 8,479.47 is: 12,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,706.99 : 26,543.21 = 8,479.47 : x
  2. Step 2: Convert to fraction form
    17,706.99/26,543.21 = 8,479.47/x
  3. Step 3: Cross multiply
    17,706.99x = 26,543.21 × 8,479.47
  4. Step 4: Simplify right side
    17,706.99x = 225,072,310.50
  5. Step 5: Solve for x
    x = 225,072,310.50/17,706.99
  6. Step 6: Final answer
    x = 12,710.93

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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.