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Finding the Fourth Proportional to 19,361.92, 29,043.06 and 5,510.92

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Solution

The fourth proportional to 19,361.92, 29,043.06 and 5,510.92 is: 8,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361.92 : 29,043.06 = 5,510.92 : x
  2. Step 2: Convert to fraction form
    19,361.92/29,043.06 = 5,510.92/x
  3. Step 3: Cross multiply
    19,361.92x = 29,043.06 × 5,510.92
  4. Step 4: Simplify right side
    19,361.92x = 160,053,980.22
  5. Step 5: Solve for x
    x = 160,053,980.22/19,361.92
  6. Step 6: Final answer
    x = 8,266.43

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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.