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Finding the Fourth Proportional to 17,220.63, 25,794.21 and 8,322.51

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Solution

The fourth proportional to 17,220.63, 25,794.21 and 8,322.51 is: 12,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.63 : 25,794.21 = 8,322.51 : x
  2. Step 2: Convert to fraction form
    17,220.63/25,794.21 = 8,322.51/x
  3. Step 3: Cross multiply
    17,220.63x = 25,794.21 × 8,322.51
  4. Step 4: Simplify right side
    17,220.63x = 214,672,570.67
  5. Step 5: Solve for x
    x = 214,672,570.67/17,220.63
  6. Step 6: Final answer
    x = 12,466.01

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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.