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Finding the Fourth Proportional to 14,754.54, 20,361.95 and 8,705.01

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Solution

The fourth proportional to 14,754.54, 20,361.95 and 8,705.01 is: 12,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.54 : 20,361.95 = 8,705.01 : x
  2. Step 2: Convert to fraction form
    14,754.54/20,361.95 = 8,705.01/x
  3. Step 3: Cross multiply
    14,754.54x = 20,361.95 × 8,705.01
  4. Step 4: Simplify right side
    14,754.54x = 177,250,934.84
  5. Step 5: Solve for x
    x = 177,250,934.84/14,754.54
  6. Step 6: Final answer
    x = 12,013.31

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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.