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Finding the Fourth Proportional to 17,222.63, 25,830.54 and 4,739.45

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Solution

The fourth proportional to 17,222.63, 25,830.54 and 4,739.45 is: 7,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,222.63 : 25,830.54 = 4,739.45 : x
  2. Step 2: Convert to fraction form
    17,222.63/25,830.54 = 4,739.45/x
  3. Step 3: Cross multiply
    17,222.63x = 25,830.54 × 4,739.45
  4. Step 4: Simplify right side
    17,222.63x = 122,422,423.65
  5. Step 5: Solve for x
    x = 122,422,423.65/17,222.63
  6. Step 6: Final answer
    x = 7,108.23

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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.