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Finding the Fourth Proportional to 77,994.72, 116,992.08 and 25,404.21

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Solution

The fourth proportional to 77,994.72, 116,992.08 and 25,404.21 is: 38,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,994.72 : 116,992.08 = 25,404.21 : x
  2. Step 2: Convert to fraction form
    77,994.72/116,992.08 = 25,404.21/x
  3. Step 3: Cross multiply
    77,994.72x = 116,992.08 × 25,404.21
  4. Step 4: Simplify right side
    77,994.72x = 2,972,091,368.66
  5. Step 5: Solve for x
    x = 2,972,091,368.66/77,994.72
  6. Step 6: Final answer
    x = 38,106.32

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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.