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Finding the Fourth Proportional to 77,419.17, 116,148.15 and 22,015.17

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Solution

The fourth proportional to 77,419.17, 116,148.15 and 22,015.17 is: 33,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,419.17 : 116,148.15 = 22,015.17 : x
  2. Step 2: Convert to fraction form
    77,419.17/116,148.15 = 22,015.17/x
  3. Step 3: Cross multiply
    77,419.17x = 116,148.15 × 22,015.17
  4. Step 4: Simplify right side
    77,419.17x = 2,557,021,267.44
  5. Step 5: Solve for x
    x = 2,557,021,267.44/77,419.17
  6. Step 6: Final answer
    x = 33,028.27

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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.