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Finding the Fourth Proportional to 13,291,213.35, 19,936,820.03 and 13,291,213.35

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Solution

The fourth proportional to 13,291,213.35, 19,936,820.03 and 13,291,213.35 is: 19,936,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,213.35 : 19,936,820.03 = 13,291,213.35 : x
  2. Step 2: Convert to fraction form
    13,291,213.35/19,936,820.03 = 13,291,213.35/x
  3. Step 3: Cross multiply
    13,291,213.35x = 19,936,820.03 × 13,291,213.35
  4. Step 4: Simplify right side
    13,291,213.35x = 264,984,528,472,827.31
  5. Step 5: Solve for x
    x = 264,984,528,472,827.31/13,291,213.35
  6. Step 6: Final answer
    x = 19,936,820.03

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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.