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Finding the Fourth Proportional to 3,510.84, 4,845.08 and 1,938.92

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Solution

The fourth proportional to 3,510.84, 4,845.08 and 1,938.92 is: 2,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.84 : 4,845.08 = 1,938.92 : x
  2. Step 2: Convert to fraction form
    3,510.84/4,845.08 = 1,938.92/x
  3. Step 3: Cross multiply
    3,510.84x = 4,845.08 × 1,938.92
  4. Step 4: Simplify right side
    3,510.84x = 9,394,222.51
  5. Step 5: Solve for x
    x = 9,394,222.51/3,510.84
  6. Step 6: Final answer
    x = 2,675.78

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Half scale
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Double scale
Find fourth proportional to 3,511.84, 4,846.46 and 1,939.92
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.