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Finding the Fourth Proportional to 18,889,737.80, 26,496,021.40 and 18,889,737.80

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Solution

The fourth proportional to 18,889,737.80, 26,496,021.40 and 18,889,737.80 is: 26,496,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,737.80 : 26,496,021.40 = 18,889,737.80 : x
  2. Step 2: Convert to fraction form
    18,889,737.80/26,496,021.40 = 18,889,737.80/x
  3. Step 3: Cross multiply
    18,889,737.80x = 26,496,021.40 × 18,889,737.80
  4. Step 4: Simplify right side
    18,889,737.80x = 500,502,896,989,188.94
  5. Step 5: Solve for x
    x = 500,502,896,989,188.94/18,889,737.80
  6. Step 6: Final answer
    x = 26,496,021.40

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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.