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Finding the Fourth Proportional to 18,448,435.20, 27,672,652.80 and 17,403,340.80

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Solution

The fourth proportional to 18,448,435.20, 27,672,652.80 and 17,403,340.80 is: 26,105,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448,435.20 : 27,672,652.80 = 17,403,340.80 : x
  2. Step 2: Convert to fraction form
    18,448,435.20/27,672,652.80 = 17,403,340.80/x
  3. Step 3: Cross multiply
    18,448,435.20x = 27,672,652.80 × 17,403,340.80
  4. Step 4: Simplify right side
    18,448,435.20x = 481,596,607,518,474.25
  5. Step 5: Solve for x
    x = 481,596,607,518,474.25/18,448,435.20
  6. Step 6: Final answer
    x = 26,105,011.20

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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.