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Finding the Fourth Proportional to 8,528.09, 11,745.99 and 7,410.29

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Solution

The fourth proportional to 8,528.09, 11,745.99 and 7,410.29 is: 10,206.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.09 : 11,745.99 = 7,410.29 : x
  2. Step 2: Convert to fraction form
    8,528.09/11,745.99 = 7,410.29/x
  3. Step 3: Cross multiply
    8,528.09x = 11,745.99 × 7,410.29
  4. Step 4: Simplify right side
    8,528.09x = 87,041,133.51
  5. Step 5: Solve for x
    x = 87,041,133.51/8,528.09
  6. Step 6: Final answer
    x = 10,206.41

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Double scale
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Similar ratio
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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.