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Finding the Fourth Proportional to 11,392.75, 15,723.62 and 10,894.60

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Solution

The fourth proportional to 11,392.75, 15,723.62 and 10,894.60 is: 15,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.75 : 15,723.62 = 10,894.60 : x
  2. Step 2: Convert to fraction form
    11,392.75/15,723.62 = 10,894.60/x
  3. Step 3: Cross multiply
    11,392.75x = 15,723.62 × 10,894.60
  4. Step 4: Simplify right side
    11,392.75x = 171,302,550.45
  5. Step 5: Solve for x
    x = 171,302,550.45/11,392.75
  6. Step 6: Final answer
    x = 15,036.10

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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.