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Finding the Fourth Proportional to 77,894.88, 116,842.32 and 18,730.56

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Solution

The fourth proportional to 77,894.88, 116,842.32 and 18,730.56 is: 28,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,894.88 : 116,842.32 = 18,730.56 : x
  2. Step 2: Convert to fraction form
    77,894.88/116,842.32 = 18,730.56/x
  3. Step 3: Cross multiply
    77,894.88x = 116,842.32 × 18,730.56
  4. Step 4: Simplify right side
    77,894.88x = 2,188,522,085.30
  5. Step 5: Solve for x
    x = 2,188,522,085.30/77,894.88
  6. Step 6: Final answer
    x = 28,095.84

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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.