Home / 66,389.15-99,600.23-19,642.03

Finding the Fourth Proportional to 66,389.15, 99,600.23 and 19,642.03

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Solution

The fourth proportional to 66,389.15, 99,600.23 and 19,642.03 is: 29,467.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.15 : 99,600.23 = 19,642.03 : x
  2. Step 2: Convert to fraction form
    66,389.15/99,600.23 = 19,642.03/x
  3. Step 3: Cross multiply
    66,389.15x = 99,600.23 × 19,642.03
  4. Step 4: Simplify right side
    66,389.15x = 1,956,350,505.77
  5. Step 5: Solve for x
    x = 1,956,350,505.77/66,389.15
  6. Step 6: Final answer
    x = 29,467.92

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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.