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Finding the Fourth Proportional to 2,715.02, 4,072.52 and 2,576.51

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Solution

The fourth proportional to 2,715.02, 4,072.52 and 2,576.51 is: 3,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.02 : 4,072.52 = 2,576.51 : x
  2. Step 2: Convert to fraction form
    2,715.02/4,072.52 = 2,576.51/x
  3. Step 3: Cross multiply
    2,715.02x = 4,072.52 × 2,576.51
  4. Step 4: Simplify right side
    2,715.02x = 10,492,888.51
  5. Step 5: Solve for x
    x = 10,492,888.51/2,715.02
  6. Step 6: Final answer
    x = 3,864.76

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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.