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Finding the Fourth Proportional to 49,897.40, 74,829.90 and 16,611.80

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Solution

The fourth proportional to 49,897.40, 74,829.90 and 16,611.80 is: 24,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,897.40 : 74,829.90 = 16,611.80 : x
  2. Step 2: Convert to fraction form
    49,897.40/74,829.90 = 16,611.80/x
  3. Step 3: Cross multiply
    49,897.40x = 74,829.90 × 16,611.80
  4. Step 4: Simplify right side
    49,897.40x = 1,243,059,332.82
  5. Step 5: Solve for x
    x = 1,243,059,332.82/49,897.40
  6. Step 6: Final answer
    x = 24,912.31

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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.