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Finding the Fourth Proportional to 19,223.40, 28,835.10 and 19,093.80

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Solution

The fourth proportional to 19,223.40, 28,835.10 and 19,093.80 is: 28,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,223.40 : 28,835.10 = 19,093.80 : x
  2. Step 2: Convert to fraction form
    19,223.40/28,835.10 = 19,093.80/x
  3. Step 3: Cross multiply
    19,223.40x = 28,835.10 × 19,093.80
  4. Step 4: Simplify right side
    19,223.40x = 550,571,632.38
  5. Step 5: Solve for x
    x = 550,571,632.38/19,223.40
  6. Step 6: Final answer
    x = 28,640.70

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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.