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Finding the Fourth Proportional to 9,803.80, 13,529.06 and 5,611.24

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Solution

The fourth proportional to 9,803.80, 13,529.06 and 5,611.24 is: 7,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,803.80 : 13,529.06 = 5,611.24 : x
  2. Step 2: Convert to fraction form
    9,803.80/13,529.06 = 5,611.24/x
  3. Step 3: Cross multiply
    9,803.80x = 13,529.06 × 5,611.24
  4. Step 4: Simplify right side
    9,803.80x = 75,914,802.63
  5. Step 5: Solve for x
    x = 75,914,802.63/9,803.80
  6. Step 6: Final answer
    x = 7,743.41

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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.