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Finding the Fourth Proportional to 49,336.80, 74,005.20 and 26,008.80

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Solution

The fourth proportional to 49,336.80, 74,005.20 and 26,008.80 is: 39,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,336.80 : 74,005.20 = 26,008.80 : x
  2. Step 2: Convert to fraction form
    49,336.80/74,005.20 = 26,008.80/x
  3. Step 3: Cross multiply
    49,336.80x = 74,005.20 × 26,008.80
  4. Step 4: Simplify right side
    49,336.80x = 1,924,786,445.76
  5. Step 5: Solve for x
    x = 1,924,786,445.76/49,336.80
  6. Step 6: Final answer
    x = 39,013.20

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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.