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Finding the Fourth Proportional to 2,951.66, 4,430.22 and 1,491.83

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Solution

The fourth proportional to 2,951.66, 4,430.22 and 1,491.83 is: 2,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.66 : 4,430.22 = 1,491.83 : x
  2. Step 2: Convert to fraction form
    2,951.66/4,430.22 = 1,491.83/x
  3. Step 3: Cross multiply
    2,951.66x = 4,430.22 × 1,491.83
  4. Step 4: Simplify right side
    2,951.66x = 6,609,135.10
  5. Step 5: Solve for x
    x = 6,609,135.10/2,951.66
  6. Step 6: Final answer
    x = 2,239.12

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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.