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Finding the Fourth Proportional to 3,510.17, 4,843.94 and 1,938.23

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Solution

The fourth proportional to 3,510.17, 4,843.94 and 1,938.23 is: 2,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.17 : 4,843.94 = 1,938.23 : x
  2. Step 2: Convert to fraction form
    3,510.17/4,843.94 = 1,938.23/x
  3. Step 3: Cross multiply
    3,510.17x = 4,843.94 × 1,938.23
  4. Step 4: Simplify right side
    3,510.17x = 9,388,635.92
  5. Step 5: Solve for x
    x = 9,388,635.92/3,510.17
  6. Step 6: Final answer
    x = 2,674.70

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Half scale
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Double scale
Find fourth proportional to 3,511.17, 4,845.31 and 1,939.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.