Home / 66,079.89-99,107.22-18,694.59

Finding the Fourth Proportional to 66,079.89, 99,107.22 and 18,694.59

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Solution

The fourth proportional to 66,079.89, 99,107.22 and 18,694.59 is: 28,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,079.89 : 99,107.22 = 18,694.59 : x
  2. Step 2: Convert to fraction form
    66,079.89/99,107.22 = 18,694.59/x
  3. Step 3: Cross multiply
    66,079.89x = 99,107.22 × 18,694.59
  4. Step 4: Simplify right side
    66,079.89x = 1,852,768,843.94
  5. Step 5: Solve for x
    x = 1,852,768,843.94/66,079.89
  6. Step 6: Final answer
    x = 28,038.32

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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.