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Finding the Fourth Proportional to 7,368.78, 11,046.87 and 3,205.59

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Solution

The fourth proportional to 7,368.78, 11,046.87 and 3,205.59 is: 4,805.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.78 : 11,046.87 = 3,205.59 : x
  2. Step 2: Convert to fraction form
    7,368.78/11,046.87 = 3,205.59/x
  3. Step 3: Cross multiply
    7,368.78x = 11,046.87 × 3,205.59
  4. Step 4: Simplify right side
    7,368.78x = 35,411,736.00
  5. Step 5: Solve for x
    x = 35,411,736.00/7,368.78
  6. Step 6: Final answer
    x = 4,805.64

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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.