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Finding the Fourth Proportional to 2,237.48, 3,356.43 and 920.93

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Solution

The fourth proportional to 2,237.48, 3,356.43 and 920.93 is: 1,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.48 : 3,356.43 = 920.93 : x
  2. Step 2: Convert to fraction form
    2,237.48/3,356.43 = 920.93/x
  3. Step 3: Cross multiply
    2,237.48x = 3,356.43 × 920.93
  4. Step 4: Simplify right side
    2,237.48x = 3,091,037.08
  5. Step 5: Solve for x
    x = 3,091,037.08/2,237.48
  6. Step 6: Final answer
    x = 1,381.48

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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.