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Finding the Fourth Proportional to 22,269.40, 33,404.10 and 10,605.40

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Solution

The fourth proportional to 22,269.40, 33,404.10 and 10,605.40 is: 15,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.40 : 33,404.10 = 10,605.40 : x
  2. Step 2: Convert to fraction form
    22,269.40/33,404.10 = 10,605.40/x
  3. Step 3: Cross multiply
    22,269.40x = 33,404.10 × 10,605.40
  4. Step 4: Simplify right side
    22,269.40x = 354,263,842.14
  5. Step 5: Solve for x
    x = 354,263,842.14/22,269.40
  6. Step 6: Final answer
    x = 15,908.10

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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.