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Finding the Fourth Proportional to 77,616.96, 116,400.96 and 25,015.20

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Solution

The fourth proportional to 77,616.96, 116,400.96 and 25,015.20 is: 37,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,616.96 : 116,400.96 = 25,015.20 : x
  2. Step 2: Convert to fraction form
    77,616.96/116,400.96 = 25,015.20/x
  3. Step 3: Cross multiply
    77,616.96x = 116,400.96 × 25,015.20
  4. Step 4: Simplify right side
    77,616.96x = 2,911,793,294.59
  5. Step 5: Solve for x
    x = 2,911,793,294.59/77,616.96
  6. Step 6: Final answer
    x = 37,514.91

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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.