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Finding the Fourth Proportional to 8,508.68, 11,739.06 and 5,528.28

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Solution

The fourth proportional to 8,508.68, 11,739.06 and 5,528.28 is: 7,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.68 : 11,739.06 = 5,528.28 : x
  2. Step 2: Convert to fraction form
    8,508.68/11,739.06 = 5,528.28/x
  3. Step 3: Cross multiply
    8,508.68x = 11,739.06 × 5,528.28
  4. Step 4: Simplify right side
    8,508.68x = 64,896,810.62
  5. Step 5: Solve for x
    x = 64,896,810.62/8,508.68
  6. Step 6: Final answer
    x = 7,627.13

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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.