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Finding the Fourth Proportional to 5,607.58, 8,410.76 and 2,487.64

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Solution

The fourth proportional to 5,607.58, 8,410.76 and 2,487.64 is: 3,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.58 : 8,410.76 = 2,487.64 : x
  2. Step 2: Convert to fraction form
    5,607.58/8,410.76 = 2,487.64/x
  3. Step 3: Cross multiply
    5,607.58x = 8,410.76 × 2,487.64
  4. Step 4: Simplify right side
    5,607.58x = 20,922,943.01
  5. Step 5: Solve for x
    x = 20,922,943.01/5,607.58
  6. Step 6: Final answer
    x = 3,731.19

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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.