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Finding the Fourth Proportional to 18,816.70, 28,241.96 and 10,059.10

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Solution

The fourth proportional to 18,816.70, 28,241.96 and 10,059.10 is: 15,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.70 : 28,241.96 = 10,059.10 : x
  2. Step 2: Convert to fraction form
    18,816.70/28,241.96 = 10,059.10/x
  3. Step 3: Cross multiply
    18,816.70x = 28,241.96 × 10,059.10
  4. Step 4: Simplify right side
    18,816.70x = 284,088,699.84
  5. Step 5: Solve for x
    x = 284,088,699.84/18,816.70
  6. Step 6: Final answer
    x = 15,097.69

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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.