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Finding the Fourth Proportional to 67,873.62, 101,706.50 and 28,409.24

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Solution

The fourth proportional to 67,873.62, 101,706.50 and 28,409.24 is: 42,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,873.62 : 101,706.50 = 28,409.24 : x
  2. Step 2: Convert to fraction form
    67,873.62/101,706.50 = 28,409.24/x
  3. Step 3: Cross multiply
    67,873.62x = 101,706.50 × 28,409.24
  4. Step 4: Simplify right side
    67,873.62x = 2,889,404,368.06
  5. Step 5: Solve for x
    x = 2,889,404,368.06/67,873.62
  6. Step 6: Final answer
    x = 42,570.36

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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.