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Finding the Fourth Proportional to 9,797.40, 14,705.70 and 4,872.60

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Solution

The fourth proportional to 9,797.40, 14,705.70 and 4,872.60 is: 7,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,797.40 : 14,705.70 = 4,872.60 : x
  2. Step 2: Convert to fraction form
    9,797.40/14,705.70 = 4,872.60/x
  3. Step 3: Cross multiply
    9,797.40x = 14,705.70 × 4,872.60
  4. Step 4: Simplify right side
    9,797.40x = 71,654,993.82
  5. Step 5: Solve for x
    x = 71,654,993.82/9,797.40
  6. Step 6: Final answer
    x = 7,313.67

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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.