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Finding the Fourth Proportional to 18,569,861.10, 27,854,791.65 and 18,569,861.10

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Solution

The fourth proportional to 18,569,861.10, 27,854,791.65 and 18,569,861.10 is: 27,854,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569,861.10 : 27,854,791.65 = 18,569,861.10 : x
  2. Step 2: Convert to fraction form
    18,569,861.10/27,854,791.65 = 18,569,861.10/x
  3. Step 3: Cross multiply
    18,569,861.10x = 27,854,791.65 × 18,569,861.10
  4. Step 4: Simplify right side
    18,569,861.10x = 517,259,611,909,939.81
  5. Step 5: Solve for x
    x = 517,259,611,909,939.81/18,569,861.10
  6. Step 6: Final answer
    x = 27,854,791.65

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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.