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Finding the Fourth Proportional to 85,206.86, 127,809.54 and 22,021.58

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Solution

The fourth proportional to 85,206.86, 127,809.54 and 22,021.58 is: 33,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,206.86 : 127,809.54 = 22,021.58 : x
  2. Step 2: Convert to fraction form
    85,206.86/127,809.54 = 22,021.58/x
  3. Step 3: Cross multiply
    85,206.86x = 127,809.54 × 22,021.58
  4. Step 4: Simplify right side
    85,206.86x = 2,814,568,009.87
  5. Step 5: Solve for x
    x = 2,814,568,009.87/85,206.86
  6. Step 6: Final answer
    x = 33,032.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.