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Finding the Fourth Proportional to 40,999, 61,492.86 and 16,021.72

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Solution

The fourth proportional to 40,999, 61,492.86 and 16,021.72 is: 24,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,999 : 61,492.86 = 16,021.72 : x
  2. Step 2: Convert to fraction form
    40,999/61,492.86 = 16,021.72/x
  3. Step 3: Cross multiply
    40,999x = 61,492.86 × 16,021.72
  4. Step 4: Simplify right side
    40,999x = 985,221,384.92
  5. Step 5: Solve for x
    x = 985,221,384.92/40,999
  6. Step 6: Final answer
    x = 24,030.38

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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.