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Finding the Fourth Proportional to 66,201.80, 99,237.90 and 26,706.20

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Solution

The fourth proportional to 66,201.80, 99,237.90 and 26,706.20 is: 40,033.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.80 : 99,237.90 = 26,706.20 : x
  2. Step 2: Convert to fraction form
    66,201.80/99,237.90 = 26,706.20/x
  3. Step 3: Cross multiply
    66,201.80x = 99,237.90 × 26,706.20
  4. Step 4: Simplify right side
    66,201.80x = 2,650,267,204.98
  5. Step 5: Solve for x
    x = 2,650,267,204.98/66,201.80
  6. Step 6: Final answer
    x = 40,033.16

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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.