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Finding the Fourth Proportional to 66,313.32, 91,483.32 and 43,623.12

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Solution

The fourth proportional to 66,313.32, 91,483.32 and 43,623.12 is: 60,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,313.32 : 91,483.32 = 43,623.12 : x
  2. Step 2: Convert to fraction form
    66,313.32/91,483.32 = 43,623.12/x
  3. Step 3: Cross multiply
    66,313.32x = 91,483.32 × 43,623.12
  4. Step 4: Simplify right side
    66,313.32x = 3,990,787,846.36
  5. Step 5: Solve for x
    x = 3,990,787,846.36/66,313.32
  6. Step 6: Final answer
    x = 60,180.79

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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.