Home / 66,433.32-99,650.34-19,686.60

Finding the Fourth Proportional to 66,433.32, 99,650.34 and 19,686.60

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Solution

The fourth proportional to 66,433.32, 99,650.34 and 19,686.60 is: 29,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,433.32 : 99,650.34 = 19,686.60 : x
  2. Step 2: Convert to fraction form
    66,433.32/99,650.34 = 19,686.60/x
  3. Step 3: Cross multiply
    66,433.32x = 99,650.34 × 19,686.60
  4. Step 4: Simplify right side
    66,433.32x = 1,961,776,383.44
  5. Step 5: Solve for x
    x = 1,961,776,383.44/66,433.32
  6. Step 6: Final answer
    x = 29,530.01

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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.