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Finding the Fourth Proportional to 18,784.88, 28,193.74 and 10,025.94

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Solution

The fourth proportional to 18,784.88, 28,193.74 and 10,025.94 is: 15,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.88 : 28,193.74 = 10,025.94 : x
  2. Step 2: Convert to fraction form
    18,784.88/28,193.74 = 10,025.94/x
  3. Step 3: Cross multiply
    18,784.88x = 28,193.74 × 10,025.94
  4. Step 4: Simplify right side
    18,784.88x = 282,668,826.28
  5. Step 5: Solve for x
    x = 282,668,826.28/18,784.88
  6. Step 6: Final answer
    x = 15,047.68

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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.