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Finding the Fourth Proportional to 13,167,967.70, 18,447,751.90 and 13,167,967.70

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Solution

The fourth proportional to 13,167,967.70, 18,447,751.90 and 13,167,967.70 is: 18,447,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167,967.70 : 18,447,751.90 = 13,167,967.70 : x
  2. Step 2: Convert to fraction form
    13,167,967.70/18,447,751.90 = 13,167,967.70/x
  3. Step 3: Cross multiply
    13,167,967.70x = 18,447,751.90 × 13,167,967.70
  4. Step 4: Simplify right side
    13,167,967.70x = 242,919,401,156,813.59
  5. Step 5: Solve for x
    x = 242,919,401,156,813.59/13,167,967.70
  6. Step 6: Final answer
    x = 18,447,751.90

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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.