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Finding the Fourth Proportional to 66,482.20, 99,771.90 and 44,288.20

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Solution

The fourth proportional to 66,482.20, 99,771.90 and 44,288.20 is: 66,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.20 : 99,771.90 = 44,288.20 : x
  2. Step 2: Convert to fraction form
    66,482.20/99,771.90 = 44,288.20/x
  3. Step 3: Cross multiply
    66,482.20x = 99,771.90 × 44,288.20
  4. Step 4: Simplify right side
    66,482.20x = 4,418,717,861.58
  5. Step 5: Solve for x
    x = 4,418,717,861.58/66,482.20
  6. Step 6: Final answer
    x = 66,464.68

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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.