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Finding the Fourth Proportional to 25,843,687.80, 38,762,421.30 and 10,696,039.80

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Solution

The fourth proportional to 25,843,687.80, 38,762,421.30 and 10,696,039.80 is: 16,042,772.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,843,687.80 : 38,762,421.30 = 10,696,039.80 : x
  2. Step 2: Convert to fraction form
    25,843,687.80/38,762,421.30 = 10,696,039.80/x
  3. Step 3: Cross multiply
    25,843,687.80x = 38,762,421.30 × 10,696,039.80
  4. Step 4: Simplify right side
    25,843,687.80x = 414,604,400,969,167.75
  5. Step 5: Solve for x
    x = 414,604,400,969,167.75/25,843,687.80
  6. Step 6: Final answer
    x = 16,042,772.39

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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.