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Finding the Fourth Proportional to 66,034.04, 99,015.22 and 29,990.70

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Solution

The fourth proportional to 66,034.04, 99,015.22 and 29,990.70 is: 44,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.04 : 99,015.22 = 29,990.70 : x
  2. Step 2: Convert to fraction form
    66,034.04/99,015.22 = 29,990.70/x
  3. Step 3: Cross multiply
    66,034.04x = 99,015.22 × 29,990.70
  4. Step 4: Simplify right side
    66,034.04x = 2,969,535,758.45
  5. Step 5: Solve for x
    x = 2,969,535,758.45/66,034.04
  6. Step 6: Final answer
    x = 44,969.77

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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.