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Finding the Fourth Proportional to 9,620.60, 14,429.40 and 3,048.40

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Solution

The fourth proportional to 9,620.60, 14,429.40 and 3,048.40 is: 4,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.60 : 14,429.40 = 3,048.40 : x
  2. Step 2: Convert to fraction form
    9,620.60/14,429.40 = 3,048.40/x
  3. Step 3: Cross multiply
    9,620.60x = 14,429.40 × 3,048.40
  4. Step 4: Simplify right side
    9,620.60x = 43,986,582.96
  5. Step 5: Solve for x
    x = 43,986,582.96/9,620.60
  6. Step 6: Final answer
    x = 4,572.12

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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.