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Finding the Fourth Proportional to 48,896.63, 73,359.69 and 20,447.40

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Solution

The fourth proportional to 48,896.63, 73,359.69 and 20,447.40 is: 30,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,896.63 : 73,359.69 = 20,447.40 : x
  2. Step 2: Convert to fraction form
    48,896.63/73,359.69 = 20,447.40/x
  3. Step 3: Cross multiply
    48,896.63x = 73,359.69 × 20,447.40
  4. Step 4: Simplify right side
    48,896.63x = 1,500,014,925.31
  5. Step 5: Solve for x
    x = 1,500,014,925.31/48,896.63
  6. Step 6: Final answer
    x = 30,677.27

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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.