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Finding the Fourth Proportional to 3,132.81, 4,699.22 and 941.31

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Solution

The fourth proportional to 3,132.81, 4,699.22 and 941.31 is: 1,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.81 : 4,699.22 = 941.31 : x
  2. Step 2: Convert to fraction form
    3,132.81/4,699.22 = 941.31/x
  3. Step 3: Cross multiply
    3,132.81x = 4,699.22 × 941.31
  4. Step 4: Simplify right side
    3,132.81x = 4,423,418.07
  5. Step 5: Solve for x
    x = 4,423,418.07/3,132.81
  6. Step 6: Final answer
    x = 1,411.97

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1.5x scale

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.