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Finding the Fourth Proportional to 17,218.47, 25,806.91 and 8,893.93

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Solution

The fourth proportional to 17,218.47, 25,806.91 and 8,893.93 is: 13,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.47 : 25,806.91 = 8,893.93 : x
  2. Step 2: Convert to fraction form
    17,218.47/25,806.91 = 8,893.93/x
  3. Step 3: Cross multiply
    17,218.47x = 25,806.91 × 8,893.93
  4. Step 4: Simplify right side
    17,218.47x = 229,524,851.06
  5. Step 5: Solve for x
    x = 229,524,851.06/17,218.47
  6. Step 6: Final answer
    x = 13,330.15

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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.