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Finding the Fourth Proportional to 66,226.98, 91,391.92 and 36,012.04

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Solution

The fourth proportional to 66,226.98, 91,391.92 and 36,012.04 is: 49,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,226.98 : 91,391.92 = 36,012.04 : x
  2. Step 2: Convert to fraction form
    66,226.98/91,391.92 = 36,012.04/x
  3. Step 3: Cross multiply
    66,226.98x = 91,391.92 × 36,012.04
  4. Step 4: Simplify right side
    66,226.98x = 3,291,209,478.72
  5. Step 5: Solve for x
    x = 3,291,209,478.72/66,226.98
  6. Step 6: Final answer
    x = 49,695.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.