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Finding the Fourth Proportional to 66,859.44, 100,289.16 and 27,389.63

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Solution

The fourth proportional to 66,859.44, 100,289.16 and 27,389.63 is: 41,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,859.44 : 100,289.16 = 27,389.63 : x
  2. Step 2: Convert to fraction form
    66,859.44/100,289.16 = 27,389.63/x
  3. Step 3: Cross multiply
    66,859.44x = 100,289.16 × 27,389.63
  4. Step 4: Simplify right side
    66,859.44x = 2,746,882,483.97
  5. Step 5: Solve for x
    x = 2,746,882,483.97/66,859.44
  6. Step 6: Final answer
    x = 41,084.44

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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.