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Finding the Fourth Proportional to 66,492.60, 99,738.90 and 27,029.40

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Solution

The fourth proportional to 66,492.60, 99,738.90 and 27,029.40 is: 40,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492.60 : 99,738.90 = 27,029.40 : x
  2. Step 2: Convert to fraction form
    66,492.60/99,738.90 = 27,029.40/x
  3. Step 3: Cross multiply
    66,492.60x = 99,738.90 × 27,029.40
  4. Step 4: Simplify right side
    66,492.60x = 2,695,882,623.66
  5. Step 5: Solve for x
    x = 2,695,882,623.66/66,492.60
  6. Step 6: Final answer
    x = 40,544.10

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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.