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Finding the Fourth Proportional to 9,759.80, 14,639.70 and 6,260.60

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Solution

The fourth proportional to 9,759.80, 14,639.70 and 6,260.60 is: 9,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,759.80 : 14,639.70 = 6,260.60 : x
  2. Step 2: Convert to fraction form
    9,759.80/14,639.70 = 6,260.60/x
  3. Step 3: Cross multiply
    9,759.80x = 14,639.70 × 6,260.60
  4. Step 4: Simplify right side
    9,759.80x = 91,653,305.82
  5. Step 5: Solve for x
    x = 91,653,305.82/9,759.80
  6. Step 6: Final answer
    x = 9,390.90

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Similar ratio
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1.5x scale

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.