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Finding the Fourth Proportional to 8,731.01, 13,096.16 and 2,157.03

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Solution

The fourth proportional to 8,731.01, 13,096.16 and 2,157.03 is: 3,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.01 : 13,096.16 = 2,157.03 : x
  2. Step 2: Convert to fraction form
    8,731.01/13,096.16 = 2,157.03/x
  3. Step 3: Cross multiply
    8,731.01x = 13,096.16 × 2,157.03
  4. Step 4: Simplify right side
    8,731.01x = 28,248,810.00
  5. Step 5: Solve for x
    x = 28,248,810.00/8,731.01
  6. Step 6: Final answer
    x = 3,235.46

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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.