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Finding the Fourth Proportional to 6,485.32, 8,950.26 and 4,986.28

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Solution

The fourth proportional to 6,485.32, 8,950.26 and 4,986.28 is: 6,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.32 : 8,950.26 = 4,986.28 : x
  2. Step 2: Convert to fraction form
    6,485.32/8,950.26 = 4,986.28/x
  3. Step 3: Cross multiply
    6,485.32x = 8,950.26 × 4,986.28
  4. Step 4: Simplify right side
    6,485.32x = 44,628,502.43
  5. Step 5: Solve for x
    x = 44,628,502.43/6,485.32
  6. Step 6: Final answer
    x = 6,881.46

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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.