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Finding the Fourth Proportional to 67,283.70, 100,926.33 and 28,810.02

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Solution

The fourth proportional to 67,283.70, 100,926.33 and 28,810.02 is: 43,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,283.70 : 100,926.33 = 28,810.02 : x
  2. Step 2: Convert to fraction form
    67,283.70/100,926.33 = 28,810.02/x
  3. Step 3: Cross multiply
    67,283.70x = 100,926.33 × 28,810.02
  4. Step 4: Simplify right side
    67,283.70x = 2,907,689,477.79
  5. Step 5: Solve for x
    x = 2,907,689,477.79/67,283.70
  6. Step 6: Final answer
    x = 43,215.36

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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.