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Finding the Fourth Proportional to 3,970.95, 5,954.54 and 2,328

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Solution

The fourth proportional to 3,970.95, 5,954.54 and 2,328 is: 3,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.95 : 5,954.54 = 2,328 : x
  2. Step 2: Convert to fraction form
    3,970.95/5,954.54 = 2,328/x
  3. Step 3: Cross multiply
    3,970.95x = 5,954.54 × 2,328
  4. Step 4: Simplify right side
    3,970.95x = 13,862,157.48
  5. Step 5: Solve for x
    x = 13,862,157.48/3,970.95
  6. Step 6: Final answer
    x = 3,490.89

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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.