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Finding the Fourth Proportional to 1,970.18, 2,954.79 and 737.22

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Solution

The fourth proportional to 1,970.18, 2,954.79 and 737.22 is: 1,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.18 : 2,954.79 = 737.22 : x
  2. Step 2: Convert to fraction form
    1,970.18/2,954.79 = 737.22/x
  3. Step 3: Cross multiply
    1,970.18x = 2,954.79 × 737.22
  4. Step 4: Simplify right side
    1,970.18x = 2,178,330.28
  5. Step 5: Solve for x
    x = 2,178,330.28/1,970.18
  6. Step 6: Final answer
    x = 1,105.65

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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.