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Finding the Fourth Proportional to 9,620.70, 14,431.05 and 3,048.90

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Solution

The fourth proportional to 9,620.70, 14,431.05 and 3,048.90 is: 4,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.70 : 14,431.05 = 3,048.90 : x
  2. Step 2: Convert to fraction form
    9,620.70/14,431.05 = 3,048.90/x
  3. Step 3: Cross multiply
    9,620.70x = 14,431.05 × 3,048.90
  4. Step 4: Simplify right side
    9,620.70x = 43,998,828.35
  5. Step 5: Solve for x
    x = 43,998,828.35/9,620.70
  6. Step 6: Final answer
    x = 4,573.35

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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.