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Finding the Fourth Proportional to 9,956.74, 13,740.60 and 5,480.60

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Solution

The fourth proportional to 9,956.74, 13,740.60 and 5,480.60 is: 7,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.74 : 13,740.60 = 5,480.60 : x
  2. Step 2: Convert to fraction form
    9,956.74/13,740.60 = 5,480.60/x
  3. Step 3: Cross multiply
    9,956.74x = 13,740.60 × 5,480.60
  4. Step 4: Simplify right side
    9,956.74x = 75,306,732.36
  5. Step 5: Solve for x
    x = 75,306,732.36/9,956.74
  6. Step 6: Final answer
    x = 7,563.39

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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.