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Finding the Fourth Proportional to 26,388,940.80, 39,583,411.20 and 26,388,940.80

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Solution

The fourth proportional to 26,388,940.80, 39,583,411.20 and 26,388,940.80 is: 39,583,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,388,940.80 : 39,583,411.20 = 26,388,940.80 : x
  2. Step 2: Convert to fraction form
    26,388,940.80/39,583,411.20 = 26,388,940.80/x
  3. Step 3: Cross multiply
    26,388,940.80x = 39,583,411.20 × 26,388,940.80
  4. Step 4: Simplify right side
    26,388,940.80x = 1,044,564,294,818,857.12
  5. Step 5: Solve for x
    x = 1,044,564,294,818,857.12/26,388,940.80
  6. Step 6: Final answer
    x = 39,583,411.20

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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.