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Finding the Fourth Proportional to 7,235.88, 10,845.54 and 3,069.78

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Solution

The fourth proportional to 7,235.88, 10,845.54 and 3,069.78 is: 4,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.88 : 10,845.54 = 3,069.78 : x
  2. Step 2: Convert to fraction form
    7,235.88/10,845.54 = 3,069.78/x
  3. Step 3: Cross multiply
    7,235.88x = 10,845.54 × 3,069.78
  4. Step 4: Simplify right side
    7,235.88x = 33,293,421.78
  5. Step 5: Solve for x
    x = 33,293,421.78/7,235.88
  6. Step 6: Final answer
    x = 4,601.16

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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.