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Finding the Fourth Proportional to 10,009.56, 13,813.20 and 5,533.20

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Solution

The fourth proportional to 10,009.56, 13,813.20 and 5,533.20 is: 7,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.56 : 13,813.20 = 5,533.20 : x
  2. Step 2: Convert to fraction form
    10,009.56/13,813.20 = 5,533.20/x
  3. Step 3: Cross multiply
    10,009.56x = 13,813.20 × 5,533.20
  4. Step 4: Simplify right side
    10,009.56x = 76,431,198.24
  5. Step 5: Solve for x
    x = 76,431,198.24/10,009.56
  6. Step 6: Final answer
    x = 7,635.82

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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.