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Finding the Fourth Proportional to 6,299.82, 8,687.52 and 4,970.88

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Solution

The fourth proportional to 6,299.82, 8,687.52 and 4,970.88 is: 6,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.82 : 8,687.52 = 4,970.88 : x
  2. Step 2: Convert to fraction form
    6,299.82/8,687.52 = 4,970.88/x
  3. Step 3: Cross multiply
    6,299.82x = 8,687.52 × 4,970.88
  4. Step 4: Simplify right side
    6,299.82x = 43,184,619.42
  5. Step 5: Solve for x
    x = 43,184,619.42/6,299.82
  6. Step 6: Final answer
    x = 6,854.90

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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.