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Finding the Fourth Proportional to 3,511.30, 4,922.30 and 3,511.30

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Solution

The fourth proportional to 3,511.30, 4,922.30 and 3,511.30 is: 4,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.30 : 4,922.30 = 3,511.30 : x
  2. Step 2: Convert to fraction form
    3,511.30/4,922.30 = 3,511.30/x
  3. Step 3: Cross multiply
    3,511.30x = 4,922.30 × 3,511.30
  4. Step 4: Simplify right side
    3,511.30x = 17,283,671.99
  5. Step 5: Solve for x
    x = 17,283,671.99/3,511.30
  6. Step 6: Final answer
    x = 4,922.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.