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Finding the Fourth Proportional to 13,751.52, 18,967.02 and 8,962.56

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Solution

The fourth proportional to 13,751.52, 18,967.02 and 8,962.56 is: 12,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.52 : 18,967.02 = 8,962.56 : x
  2. Step 2: Convert to fraction form
    13,751.52/18,967.02 = 8,962.56/x
  3. Step 3: Cross multiply
    13,751.52x = 18,967.02 × 8,962.56
  4. Step 4: Simplify right side
    13,751.52x = 169,993,054.77
  5. Step 5: Solve for x
    x = 169,993,054.77/13,751.52
  6. Step 6: Final answer
    x = 12,361.76

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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.