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Finding the Fourth Proportional to 5,485.32, 8,208.54 and 4,837.32

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Solution

The fourth proportional to 5,485.32, 8,208.54 and 4,837.32 is: 7,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.32 : 8,208.54 = 4,837.32 : x
  2. Step 2: Convert to fraction form
    5,485.32/8,208.54 = 4,837.32/x
  3. Step 3: Cross multiply
    5,485.32x = 8,208.54 × 4,837.32
  4. Step 4: Simplify right side
    5,485.32x = 39,707,334.71
  5. Step 5: Solve for x
    x = 39,707,334.71/5,485.32
  6. Step 6: Final answer
    x = 7,238.84

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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.