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Finding the Fourth Proportional to 2,253.94, 3,381.03 and 715.06

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Solution

The fourth proportional to 2,253.94, 3,381.03 and 715.06 is: 1,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.94 : 3,381.03 = 715.06 : x
  2. Step 2: Convert to fraction form
    2,253.94/3,381.03 = 715.06/x
  3. Step 3: Cross multiply
    2,253.94x = 3,381.03 × 715.06
  4. Step 4: Simplify right side
    2,253.94x = 2,417,639.31
  5. Step 5: Solve for x
    x = 2,417,639.31/2,253.94
  6. Step 6: Final answer
    x = 1,072.63

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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.