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Finding the Fourth Proportional to 7,485.55, 10,331.03 and 6,224.44

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Solution

The fourth proportional to 7,485.55, 10,331.03 and 6,224.44 is: 8,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.55 : 10,331.03 = 6,224.44 : x
  2. Step 2: Convert to fraction form
    7,485.55/10,331.03 = 6,224.44/x
  3. Step 3: Cross multiply
    7,485.55x = 10,331.03 × 6,224.44
  4. Step 4: Simplify right side
    7,485.55x = 64,304,876.37
  5. Step 5: Solve for x
    x = 64,304,876.37/7,485.55
  6. Step 6: Final answer
    x = 8,590.53

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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.