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Finding the Fourth Proportional to 13,771,922.40, 20,633,000.40 and 11,781,266.40

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Solution

The fourth proportional to 13,771,922.40, 20,633,000.40 and 11,781,266.40 is: 17,650,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,922.40 : 20,633,000.40 = 11,781,266.40 : x
  2. Step 2: Convert to fraction form
    13,771,922.40/20,633,000.40 = 11,781,266.40/x
  3. Step 3: Cross multiply
    13,771,922.40x = 20,633,000.40 × 11,781,266.40
  4. Step 4: Simplify right side
    13,771,922.40x = 243,082,874,343,706.56
  5. Step 5: Solve for x
    x = 243,082,874,343,706.56/13,771,922.40
  6. Step 6: Final answer
    x = 17,650,613.13

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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.