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Finding the Fourth Proportional to 2,894.85, 4,342.13 and 1,045.94

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Solution

The fourth proportional to 2,894.85, 4,342.13 and 1,045.94 is: 1,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.85 : 4,342.13 = 1,045.94 : x
  2. Step 2: Convert to fraction form
    2,894.85/4,342.13 = 1,045.94/x
  3. Step 3: Cross multiply
    2,894.85x = 4,342.13 × 1,045.94
  4. Step 4: Simplify right side
    2,894.85x = 4,541,580.51
  5. Step 5: Solve for x
    x = 4,541,580.51/2,894.85
  6. Step 6: Final answer
    x = 1,568.85

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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.