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Finding the Fourth Proportional to 66,223.63, 99,333.22 and 28,783.68

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Solution

The fourth proportional to 66,223.63, 99,333.22 and 28,783.68 is: 43,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223.63 : 99,333.22 = 28,783.68 : x
  2. Step 2: Convert to fraction form
    66,223.63/99,333.22 = 28,783.68/x
  3. Step 3: Cross multiply
    66,223.63x = 99,333.22 × 28,783.68
  4. Step 4: Simplify right side
    66,223.63x = 2,859,175,617.85
  5. Step 5: Solve for x
    x = 2,859,175,617.85/66,223.63
  6. Step 6: Final answer
    x = 43,174.55

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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.