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Finding the Fourth Proportional to 13,057,422.80, 18,299,287.60 and 13,057,422.80

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Solution

The fourth proportional to 13,057,422.80, 18,299,287.60 and 13,057,422.80 is: 18,299,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057,422.80 : 18,299,287.60 = 13,057,422.80 : x
  2. Step 2: Convert to fraction form
    13,057,422.80/18,299,287.60 = 13,057,422.80/x
  3. Step 3: Cross multiply
    13,057,422.80x = 18,299,287.60 × 13,057,422.80
  4. Step 4: Simplify right side
    13,057,422.80x = 238,941,535,131,997.31
  5. Step 5: Solve for x
    x = 238,941,535,131,997.31/13,057,422.80
  6. Step 6: Final answer
    x = 18,299,287.60

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1.5x scale

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.