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Finding the Fourth Proportional to 3,313.80, 4,653.90 and 3,313.80

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Solution

The fourth proportional to 3,313.80, 4,653.90 and 3,313.80 is: 4,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.80 : 4,653.90 = 3,313.80 : x
  2. Step 2: Convert to fraction form
    3,313.80/4,653.90 = 3,313.80/x
  3. Step 3: Cross multiply
    3,313.80x = 4,653.90 × 3,313.80
  4. Step 4: Simplify right side
    3,313.80x = 15,422,093.82
  5. Step 5: Solve for x
    x = 15,422,093.82/3,313.80
  6. Step 6: Final answer
    x = 4,653.90

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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.