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Finding the Fourth Proportional to 2,507.15, 3,760.05 and 751.88

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Solution

The fourth proportional to 2,507.15, 3,760.05 and 751.88 is: 1,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.15 : 3,760.05 = 751.88 : x
  2. Step 2: Convert to fraction form
    2,507.15/3,760.05 = 751.88/x
  3. Step 3: Cross multiply
    2,507.15x = 3,760.05 × 751.88
  4. Step 4: Simplify right side
    2,507.15x = 2,827,106.39
  5. Step 5: Solve for x
    x = 2,827,106.39/2,507.15
  6. Step 6: Final answer
    x = 1,127.62

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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.