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Finding the Fourth Proportional to 77,412.25, 116,137.89 and 22,008.25

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Solution

The fourth proportional to 77,412.25, 116,137.89 and 22,008.25 is: 33,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,412.25 : 116,137.89 = 22,008.25 : x
  2. Step 2: Convert to fraction form
    77,412.25/116,137.89 = 22,008.25/x
  3. Step 3: Cross multiply
    77,412.25x = 116,137.89 × 22,008.25
  4. Step 4: Simplify right side
    77,412.25x = 2,555,991,717.59
  5. Step 5: Solve for x
    x = 2,555,991,717.59/77,412.25
  6. Step 6: Final answer
    x = 33,017.92

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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.