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Finding the Fourth Proportional to 73,016.45, 100,762.71 and 39,482.45

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Solution

The fourth proportional to 73,016.45, 100,762.71 and 39,482.45 is: 54,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,016.45 : 100,762.71 = 39,482.45 : x
  2. Step 2: Convert to fraction form
    73,016.45/100,762.71 = 39,482.45/x
  3. Step 3: Cross multiply
    73,016.45x = 100,762.71 × 39,482.45
  4. Step 4: Simplify right side
    73,016.45x = 3,978,358,659.44
  5. Step 5: Solve for x
    x = 3,978,358,659.44/73,016.45
  6. Step 6: Final answer
    x = 54,485.79

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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.