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Finding the Fourth Proportional to 7,203.76, 10,805.52 and 4,393.42

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Solution

The fourth proportional to 7,203.76, 10,805.52 and 4,393.42 is: 6,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.76 : 10,805.52 = 4,393.42 : x
  2. Step 2: Convert to fraction form
    7,203.76/10,805.52 = 4,393.42/x
  3. Step 3: Cross multiply
    7,203.76x = 10,805.52 × 4,393.42
  4. Step 4: Simplify right side
    7,203.76x = 47,473,187.68
  5. Step 5: Solve for x
    x = 47,473,187.68/7,203.76
  6. Step 6: Final answer
    x = 6,590.06

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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.