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Finding the Fourth Proportional to 77,806.70, 116,728.54 and 25,216.22

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Solution

The fourth proportional to 77,806.70, 116,728.54 and 25,216.22 is: 37,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,806.70 : 116,728.54 = 25,216.22 : x
  2. Step 2: Convert to fraction form
    77,806.70/116,728.54 = 25,216.22/x
  3. Step 3: Cross multiply
    77,806.70x = 116,728.54 × 25,216.22
  4. Step 4: Simplify right side
    77,806.70x = 2,943,452,544.92
  5. Step 5: Solve for x
    x = 2,943,452,544.92/77,806.70
  6. Step 6: Final answer
    x = 37,830.32

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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.