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Finding the Fourth Proportional to 12,458.84, 17,201.84 and 7,745.24

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Solution

The fourth proportional to 12,458.84, 17,201.84 and 7,745.24 is: 10,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.84 : 17,201.84 = 7,745.24 : x
  2. Step 2: Convert to fraction form
    12,458.84/17,201.84 = 7,745.24/x
  3. Step 3: Cross multiply
    12,458.84x = 17,201.84 × 7,745.24
  4. Step 4: Simplify right side
    12,458.84x = 133,232,379.24
  5. Step 5: Solve for x
    x = 133,232,379.24/12,458.84
  6. Step 6: Final answer
    x = 10,693.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.