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Finding the Fourth Proportional to 82,172.88, 123,259.32 and 23,017.32

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Solution

The fourth proportional to 82,172.88, 123,259.32 and 23,017.32 is: 34,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,172.88 : 123,259.32 = 23,017.32 : x
  2. Step 2: Convert to fraction form
    82,172.88/123,259.32 = 23,017.32/x
  3. Step 3: Cross multiply
    82,172.88x = 123,259.32 × 23,017.32
  4. Step 4: Simplify right side
    82,172.88x = 2,837,099,211.42
  5. Step 5: Solve for x
    x = 2,837,099,211.42/82,172.88
  6. Step 6: Final answer
    x = 34,525.98

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Similar ratio
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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.