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Finding the Fourth Proportional to 40,493.61, 60,740.82 and 14,198.99

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Solution

The fourth proportional to 40,493.61, 60,740.82 and 14,198.99 is: 21,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,493.61 : 60,740.82 = 14,198.99 : x
  2. Step 2: Convert to fraction form
    40,493.61/60,740.82 = 14,198.99/x
  3. Step 3: Cross multiply
    40,493.61x = 60,740.82 × 14,198.99
  4. Step 4: Simplify right side
    40,493.61x = 862,457,992.07
  5. Step 5: Solve for x
    x = 862,457,992.07/40,493.61
  6. Step 6: Final answer
    x = 21,298.62

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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.