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Finding the Fourth Proportional to 9,483.87, 13,087.86 and 5,235.12

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Solution

The fourth proportional to 9,483.87, 13,087.86 and 5,235.12 is: 7,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,483.87 : 13,087.86 = 5,235.12 : x
  2. Step 2: Convert to fraction form
    9,483.87/13,087.86 = 5,235.12/x
  3. Step 3: Cross multiply
    9,483.87x = 13,087.86 × 5,235.12
  4. Step 4: Simplify right side
    9,483.87x = 68,516,517.64
  5. Step 5: Solve for x
    x = 68,516,517.64/9,483.87
  6. Step 6: Final answer
    x = 7,224.53

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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.