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Finding the Fourth Proportional to 12,647.63, 17,453.79 and 7,058.63

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Solution

The fourth proportional to 12,647.63, 17,453.79 and 7,058.63 is: 9,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.63 : 17,453.79 = 7,058.63 : x
  2. Step 2: Convert to fraction form
    12,647.63/17,453.79 = 7,058.63/x
  3. Step 3: Cross multiply
    12,647.63x = 17,453.79 × 7,058.63
  4. Step 4: Simplify right side
    12,647.63x = 123,199,758.44
  5. Step 5: Solve for x
    x = 123,199,758.44/12,647.63
  6. Step 6: Final answer
    x = 9,740.94

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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.