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Finding the Fourth Proportional to 9,203.44, 12,699.06 and 5,427.79

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Solution

The fourth proportional to 9,203.44, 12,699.06 and 5,427.79 is: 7,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,203.44 : 12,699.06 = 5,427.79 : x
  2. Step 2: Convert to fraction form
    9,203.44/12,699.06 = 5,427.79/x
  3. Step 3: Cross multiply
    9,203.44x = 12,699.06 × 5,427.79
  4. Step 4: Simplify right side
    9,203.44x = 68,927,830.88
  5. Step 5: Solve for x
    x = 68,927,830.88/9,203.44
  6. Step 6: Final answer
    x = 7,489.36

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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.