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Finding the Fourth Proportional to 67,372.80, 101,059.20 and 27,916.80

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Solution

The fourth proportional to 67,372.80, 101,059.20 and 27,916.80 is: 41,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,372.80 : 101,059.20 = 27,916.80 : x
  2. Step 2: Convert to fraction form
    67,372.80/101,059.20 = 27,916.80/x
  3. Step 3: Cross multiply
    67,372.80x = 101,059.20 × 27,916.80
  4. Step 4: Simplify right side
    67,372.80x = 2,821,249,474.56
  5. Step 5: Solve for x
    x = 2,821,249,474.56/67,372.80
  6. Step 6: Final answer
    x = 41,875.20

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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.