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Finding the Fourth Proportional to 84,047.58, 115,986.20 and 46,321.83

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Solution

The fourth proportional to 84,047.58, 115,986.20 and 46,321.83 is: 63,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,047.58 : 115,986.20 = 46,321.83 : x
  2. Step 2: Convert to fraction form
    84,047.58/115,986.20 = 46,321.83/x
  3. Step 3: Cross multiply
    84,047.58x = 115,986.20 × 46,321.83
  4. Step 4: Simplify right side
    84,047.58x = 5,372,692,807.14
  5. Step 5: Solve for x
    x = 5,372,692,807.14/84,047.58
  6. Step 6: Final answer
    x = 63,924.42

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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.