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Finding the Fourth Proportional to 19,270.22, 28,909.23 and 10,954.22

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Solution

The fourth proportional to 19,270.22, 28,909.23 and 10,954.22 is: 16,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.22 : 28,909.23 = 10,954.22 : x
  2. Step 2: Convert to fraction form
    19,270.22/28,909.23 = 10,954.22/x
  3. Step 3: Cross multiply
    19,270.22x = 28,909.23 × 10,954.22
  4. Step 4: Simplify right side
    19,270.22x = 316,678,065.45
  5. Step 5: Solve for x
    x = 316,678,065.45/19,270.22
  6. Step 6: Final answer
    x = 16,433.55

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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.