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Finding the Fourth Proportional to 9,803.74, 13,528.81 and 5,327.40

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Solution

The fourth proportional to 9,803.74, 13,528.81 and 5,327.40 is: 7,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,803.74 : 13,528.81 = 5,327.40 : x
  2. Step 2: Convert to fraction form
    9,803.74/13,528.81 = 5,327.40/x
  3. Step 3: Cross multiply
    9,803.74x = 13,528.81 × 5,327.40
  4. Step 4: Simplify right side
    9,803.74x = 72,073,321.93
  5. Step 5: Solve for x
    x = 72,073,321.93/9,803.74
  6. Step 6: Final answer
    x = 7,351.61

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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.