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Finding the Fourth Proportional to 13,754.77, 18,962.78 and 9,447.73

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Solution

The fourth proportional to 13,754.77, 18,962.78 and 9,447.73 is: 13,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.77 : 18,962.78 = 9,447.73 : x
  2. Step 2: Convert to fraction form
    13,754.77/18,962.78 = 9,447.73/x
  3. Step 3: Cross multiply
    13,754.77x = 18,962.78 × 9,447.73
  4. Step 4: Simplify right side
    13,754.77x = 179,155,130.84
  5. Step 5: Solve for x
    x = 179,155,130.84/13,754.77
  6. Step 6: Final answer
    x = 13,024.95

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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.