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Finding the Fourth Proportional to 77,884.80, 116,831.34 and 25,290.42

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Solution

The fourth proportional to 77,884.80, 116,831.34 and 25,290.42 is: 37,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,884.80 : 116,831.34 = 25,290.42 : x
  2. Step 2: Convert to fraction form
    77,884.80/116,831.34 = 25,290.42/x
  3. Step 3: Cross multiply
    77,884.80x = 116,831.34 × 25,290.42
  4. Step 4: Simplify right side
    77,884.80x = 2,954,713,657.76
  5. Step 5: Solve for x
    x = 2,954,713,657.76/77,884.80
  6. Step 6: Final answer
    x = 37,936.97

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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.