Home / 66,235.66-99,350.97-21,861.10

Finding the Fourth Proportional to 66,235.66, 99,350.97 and 21,861.10

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Solution

The fourth proportional to 66,235.66, 99,350.97 and 21,861.10 is: 32,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.66 : 99,350.97 = 21,861.10 : x
  2. Step 2: Convert to fraction form
    66,235.66/99,350.97 = 21,861.10/x
  3. Step 3: Cross multiply
    66,235.66x = 99,350.97 × 21,861.10
  4. Step 4: Simplify right side
    66,235.66x = 2,171,921,490.27
  5. Step 5: Solve for x
    x = 2,171,921,490.27/66,235.66
  6. Step 6: Final answer
    x = 32,790.82

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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.