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Finding the Fourth Proportional to 18,794.40, 28,191.60 and 10,024.80

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Solution

The fourth proportional to 18,794.40, 28,191.60 and 10,024.80 is: 15,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.40 : 28,191.60 = 10,024.80 : x
  2. Step 2: Convert to fraction form
    18,794.40/28,191.60 = 10,024.80/x
  3. Step 3: Cross multiply
    18,794.40x = 28,191.60 × 10,024.80
  4. Step 4: Simplify right side
    18,794.40x = 282,615,151.68
  5. Step 5: Solve for x
    x = 282,615,151.68/18,794.40
  6. Step 6: Final answer
    x = 15,037.20

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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.