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Finding the Fourth Proportional to 19,223.50, 26,528.43 and 10,391.50

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Solution

The fourth proportional to 19,223.50, 26,528.43 and 10,391.50 is: 14,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,223.50 : 26,528.43 = 10,391.50 : x
  2. Step 2: Convert to fraction form
    19,223.50/26,528.43 = 10,391.50/x
  3. Step 3: Cross multiply
    19,223.50x = 26,528.43 × 10,391.50
  4. Step 4: Simplify right side
    19,223.50x = 275,670,180.35
  5. Step 5: Solve for x
    x = 275,670,180.35/19,223.50
  6. Step 6: Final answer
    x = 14,340.27

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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.