Home / 66,512.23-99,782.60-19,126.90

Finding the Fourth Proportional to 66,512.23, 99,782.60 and 19,126.90

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Solution

The fourth proportional to 66,512.23, 99,782.60 and 19,126.90 is: 28,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.23 : 99,782.60 = 19,126.90 : x
  2. Step 2: Convert to fraction form
    66,512.23/99,782.60 = 19,126.90/x
  3. Step 3: Cross multiply
    66,512.23x = 99,782.60 × 19,126.90
  4. Step 4: Simplify right side
    66,512.23x = 1,908,531,811.94
  5. Step 5: Solve for x
    x = 1,908,531,811.94/66,512.23
  6. Step 6: Final answer
    x = 28,694.45

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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.