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Finding the Fourth Proportional to 59,493.89, 89,243.79 and 19,516.90

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Solution

The fourth proportional to 59,493.89, 89,243.79 and 19,516.90 is: 29,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,493.89 : 89,243.79 = 19,516.90 : x
  2. Step 2: Convert to fraction form
    59,493.89/89,243.79 = 19,516.90/x
  3. Step 3: Cross multiply
    59,493.89x = 89,243.79 × 19,516.90
  4. Step 4: Simplify right side
    59,493.89x = 1,741,762,125.05
  5. Step 5: Solve for x
    x = 1,741,762,125.05/59,493.89
  6. Step 6: Final answer
    x = 29,276.32

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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.