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Finding the Fourth Proportional to 22,069.50, 30,455.91 and 12,133.50

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Solution

The fourth proportional to 22,069.50, 30,455.91 and 12,133.50 is: 16,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,069.50 : 30,455.91 = 12,133.50 : x
  2. Step 2: Convert to fraction form
    22,069.50/30,455.91 = 12,133.50/x
  3. Step 3: Cross multiply
    22,069.50x = 30,455.91 × 12,133.50
  4. Step 4: Simplify right side
    22,069.50x = 369,536,783.99
  5. Step 5: Solve for x
    x = 369,536,783.99/22,069.50
  6. Step 6: Final answer
    x = 16,744.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.