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Finding the Fourth Proportional to 13,207,551.90, 18,452,781.30 and 13,207,551.90

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Solution

The fourth proportional to 13,207,551.90, 18,452,781.30 and 13,207,551.90 is: 18,452,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,551.90 : 18,452,781.30 = 13,207,551.90 : x
  2. Step 2: Convert to fraction form
    13,207,551.90/18,452,781.30 = 13,207,551.90/x
  3. Step 3: Cross multiply
    13,207,551.90x = 18,452,781.30 × 13,207,551.90
  4. Step 4: Simplify right side
    13,207,551.90x = 243,716,066,719,099.50
  5. Step 5: Solve for x
    x = 243,716,066,719,099.50/13,207,551.90
  6. Step 6: Final answer
    x = 18,452,781.30

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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.