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Finding the Fourth Proportional to 77,612.87, 116,416.06 and 22,208.87

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Solution

The fourth proportional to 77,612.87, 116,416.06 and 22,208.87 is: 33,312.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.87 : 116,416.06 = 22,208.87 : x
  2. Step 2: Convert to fraction form
    77,612.87/116,416.06 = 22,208.87/x
  3. Step 3: Cross multiply
    77,612.87x = 116,416.06 × 22,208.87
  4. Step 4: Simplify right side
    77,612.87x = 2,585,468,504.85
  5. Step 5: Solve for x
    x = 2,585,468,504.85/77,612.87
  6. Step 6: Final answer
    x = 33,312.37

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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.