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Finding the Fourth Proportional to 66,927.98, 100,326.69 and 31,858.22

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Solution

The fourth proportional to 66,927.98, 100,326.69 and 31,858.22 is: 47,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927.98 : 100,326.69 = 31,858.22 : x
  2. Step 2: Convert to fraction form
    66,927.98/100,326.69 = 31,858.22/x
  3. Step 3: Cross multiply
    66,927.98x = 100,326.69 × 31,858.22
  4. Step 4: Simplify right side
    66,927.98x = 3,196,229,761.89
  5. Step 5: Solve for x
    x = 3,196,229,761.89/66,927.98
  6. Step 6: Final answer
    x = 47,756.26

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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.