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Finding the Fourth Proportional to 12,453.77, 18,682.61 and 5,058.77

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Solution

The fourth proportional to 12,453.77, 18,682.61 and 5,058.77 is: 7,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.77 : 18,682.61 = 5,058.77 : x
  2. Step 2: Convert to fraction form
    12,453.77/18,682.61 = 5,058.77/x
  3. Step 3: Cross multiply
    12,453.77x = 18,682.61 × 5,058.77
  4. Step 4: Simplify right side
    12,453.77x = 94,510,908.28
  5. Step 5: Solve for x
    x = 94,510,908.28/12,453.77
  6. Step 6: Final answer
    x = 7,588.94

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1.5x scale

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.