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Finding the Fourth Proportional to 13,208,004.90, 18,453,415.50 and 13,208,004.90

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Solution

The fourth proportional to 13,208,004.90, 18,453,415.50 and 13,208,004.90 is: 18,453,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208,004.90 : 18,453,415.50 = 13,208,004.90 : x
  2. Step 2: Convert to fraction form
    13,208,004.90/18,453,415.50 = 13,208,004.90/x
  3. Step 3: Cross multiply
    13,208,004.90x = 18,453,415.50 × 13,208,004.90
  4. Step 4: Simplify right side
    13,208,004.90x = 243,732,802,345,735.97
  5. Step 5: Solve for x
    x = 243,732,802,345,735.97/13,208,004.90
  6. Step 6: Final answer
    x = 18,453,415.50

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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.