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Finding the Fourth Proportional to 12,658.22, 17,316.53 and 12,604.91

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Solution

The fourth proportional to 12,658.22, 17,316.53 and 12,604.91 is: 17,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.22 : 17,316.53 = 12,604.91 : x
  2. Step 2: Convert to fraction form
    12,658.22/17,316.53 = 12,604.91/x
  3. Step 3: Cross multiply
    12,658.22x = 17,316.53 × 12,604.91
  4. Step 4: Simplify right side
    12,658.22x = 218,273,239.14
  5. Step 5: Solve for x
    x = 218,273,239.14/12,658.22
  6. Step 6: Final answer
    x = 17,243.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.