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Finding the Fourth Proportional to 2,916.03, 4,372.44 and 1,992.63

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Solution

The fourth proportional to 2,916.03, 4,372.44 and 1,992.63 is: 2,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.03 : 4,372.44 = 1,992.63 : x
  2. Step 2: Convert to fraction form
    2,916.03/4,372.44 = 1,992.63/x
  3. Step 3: Cross multiply
    2,916.03x = 4,372.44 × 1,992.63
  4. Step 4: Simplify right side
    2,916.03x = 8,712,623.29
  5. Step 5: Solve for x
    x = 8,712,623.29/2,916.03
  6. Step 6: Final answer
    x = 2,987.84

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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.