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Finding the Fourth Proportional to 81,875.63, 122,813.44 and 32,662.19

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Solution

The fourth proportional to 81,875.63, 122,813.44 and 32,662.19 is: 48,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,875.63 : 122,813.44 = 32,662.19 : x
  2. Step 2: Convert to fraction form
    81,875.63/122,813.44 = 32,662.19/x
  3. Step 3: Cross multiply
    81,875.63x = 122,813.44 × 32,662.19
  4. Step 4: Simplify right side
    81,875.63x = 4,011,355,911.83
  5. Step 5: Solve for x
    x = 4,011,355,911.83/81,875.63
  6. Step 6: Final answer
    x = 48,993.28

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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.