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Finding the Fourth Proportional to 12,859.17, 17,745.77 and 7,554.07

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Solution

The fourth proportional to 12,859.17, 17,745.77 and 7,554.07 is: 10,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.17 : 17,745.77 = 7,554.07 : x
  2. Step 2: Convert to fraction form
    12,859.17/17,745.77 = 7,554.07/x
  3. Step 3: Cross multiply
    12,859.17x = 17,745.77 × 7,554.07
  4. Step 4: Simplify right side
    12,859.17x = 134,052,788.78
  5. Step 5: Solve for x
    x = 134,052,788.78/12,859.17
  6. Step 6: Final answer
    x = 10,424.68

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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.