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Finding the Fourth Proportional to 17,213.30, 25,799.19 and 8,888.78

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Solution

The fourth proportional to 17,213.30, 25,799.19 and 8,888.78 is: 13,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,213.30 : 25,799.19 = 8,888.78 : x
  2. Step 2: Convert to fraction form
    17,213.30/25,799.19 = 8,888.78/x
  3. Step 3: Cross multiply
    17,213.30x = 25,799.19 × 8,888.78
  4. Step 4: Simplify right side
    17,213.30x = 229,323,258.51
  5. Step 5: Solve for x
    x = 229,323,258.51/17,213.30
  6. Step 6: Final answer
    x = 13,322.44

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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.