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Finding the Fourth Proportional to 17,400.30, 26,100.60 and 4,920.60

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Solution

The fourth proportional to 17,400.30, 26,100.60 and 4,920.60 is: 7,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,400.30 : 26,100.60 = 4,920.60 : x
  2. Step 2: Convert to fraction form
    17,400.30/26,100.60 = 4,920.60/x
  3. Step 3: Cross multiply
    17,400.30x = 26,100.60 × 4,920.60
  4. Step 4: Simplify right side
    17,400.30x = 128,430,612.36
  5. Step 5: Solve for x
    x = 128,430,612.36/17,400.30
  6. Step 6: Final answer
    x = 7,380.94

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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.