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Finding the Fourth Proportional to 66,063.35, 99,110.16 and 28,629.71

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Solution

The fourth proportional to 66,063.35, 99,110.16 and 28,629.71 is: 42,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.35 : 99,110.16 = 28,629.71 : x
  2. Step 2: Convert to fraction form
    66,063.35/99,110.16 = 28,629.71/x
  3. Step 3: Cross multiply
    66,063.35x = 99,110.16 × 28,629.71
  4. Step 4: Simplify right side
    66,063.35x = 2,837,494,643.30
  5. Step 5: Solve for x
    x = 2,837,494,643.30/66,063.35
  6. Step 6: Final answer
    x = 42,951.12

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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.