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Finding the Fourth Proportional to 9,277.96, 12,805.96 and 5,739.16

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Solution

The fourth proportional to 9,277.96, 12,805.96 and 5,739.16 is: 7,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.96 : 12,805.96 = 5,739.16 : x
  2. Step 2: Convert to fraction form
    9,277.96/12,805.96 = 5,739.16/x
  3. Step 3: Cross multiply
    9,277.96x = 12,805.96 × 5,739.16
  4. Step 4: Simplify right side
    9,277.96x = 73,495,453.39
  5. Step 5: Solve for x
    x = 73,495,453.39/9,277.96
  6. Step 6: Final answer
    x = 7,921.51

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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.