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Finding the Fourth Proportional to 8,609.43, 11,877.97 and 5,627.00

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Solution

The fourth proportional to 8,609.43, 11,877.97 and 5,627.00 is: 7,763.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.43 : 11,877.97 = 5,627.00 : x
  2. Step 2: Convert to fraction form
    8,609.43/11,877.97 = 5,627.00/x
  3. Step 3: Cross multiply
    8,609.43x = 11,877.97 × 5,627.00
  4. Step 4: Simplify right side
    8,609.43x = 66,837,320.51
  5. Step 5: Solve for x
    x = 66,837,320.51/8,609.43
  6. Step 6: Final answer
    x = 7,763.27

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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.