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Finding the Fourth Proportional to 6,927.39, 9,559.86 and 3,783.63

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Solution

The fourth proportional to 6,927.39, 9,559.86 and 3,783.63 is: 5,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,927.39 : 9,559.86 = 3,783.63 : x
  2. Step 2: Convert to fraction form
    6,927.39/9,559.86 = 3,783.63/x
  3. Step 3: Cross multiply
    6,927.39x = 9,559.86 × 3,783.63
  4. Step 4: Simplify right side
    6,927.39x = 36,170,973.09
  5. Step 5: Solve for x
    x = 36,170,973.09/6,927.39
  6. Step 6: Final answer
    x = 5,221.44

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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.