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Finding the Fourth Proportional to 17,914.50, 26,875.13 and 8,555.22

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Solution

The fourth proportional to 17,914.50, 26,875.13 and 8,555.22 is: 12,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,914.50 : 26,875.13 = 8,555.22 : x
  2. Step 2: Convert to fraction form
    17,914.50/26,875.13 = 8,555.22/x
  3. Step 3: Cross multiply
    17,914.50x = 26,875.13 × 8,555.22
  4. Step 4: Simplify right side
    17,914.50x = 229,922,606.90
  5. Step 5: Solve for x
    x = 229,922,606.90/17,914.50
  6. Step 6: Final answer
    x = 12,834.44

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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.