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Finding the Fourth Proportional to 19,361,846.40, 29,042,769.60 and 16,674,460.80

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Solution

The fourth proportional to 19,361,846.40, 29,042,769.60 and 16,674,460.80 is: 25,011,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361,846.40 : 29,042,769.60 = 16,674,460.80 : x
  2. Step 2: Convert to fraction form
    19,361,846.40/29,042,769.60 = 16,674,460.80/x
  3. Step 3: Cross multiply
    19,361,846.40x = 29,042,769.60 × 16,674,460.80
  4. Step 4: Simplify right side
    19,361,846.40x = 484,272,523,218,631.75
  5. Step 5: Solve for x
    x = 484,272,523,218,631.75/19,361,846.40
  6. Step 6: Final answer
    x = 25,011,691.20

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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.