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Finding the Fourth Proportional to 18,738,069.90, 26,254,555.50 and 18,738,069.90

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Solution

The fourth proportional to 18,738,069.90, 26,254,555.50 and 18,738,069.90 is: 26,254,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,069.90 : 26,254,555.50 = 18,738,069.90 : x
  2. Step 2: Convert to fraction form
    18,738,069.90/26,254,555.50 = 18,738,069.90/x
  3. Step 3: Cross multiply
    18,738,069.90x = 26,254,555.50 × 18,738,069.90
  4. Step 4: Simplify right side
    18,738,069.90x = 491,959,696,152,429.44
  5. Step 5: Solve for x
    x = 491,959,696,152,429.44/18,738,069.90
  6. Step 6: Final answer
    x = 26,254,555.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.