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Finding the Fourth Proportional to 18,772.60, 28,191.30 and 10,024.60

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Solution

The fourth proportional to 18,772.60, 28,191.30 and 10,024.60 is: 15,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.60 : 28,191.30 = 10,024.60 : x
  2. Step 2: Convert to fraction form
    18,772.60/28,191.30 = 10,024.60/x
  3. Step 3: Cross multiply
    18,772.60x = 28,191.30 × 10,024.60
  4. Step 4: Simplify right side
    18,772.60x = 282,606,505.98
  5. Step 5: Solve for x
    x = 282,606,505.98/18,772.60
  6. Step 6: Final answer
    x = 15,054.20

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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.