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Finding the Fourth Proportional to 18,722,580.90, 26,247,002.70 and 18,722,580.90

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Solution

The fourth proportional to 18,722,580.90, 26,247,002.70 and 18,722,580.90 is: 26,247,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,580.90 : 26,247,002.70 = 18,722,580.90 : x
  2. Step 2: Convert to fraction form
    18,722,580.90/26,247,002.70 = 18,722,580.90/x
  3. Step 3: Cross multiply
    18,722,580.90x = 26,247,002.70 × 18,722,580.90
  4. Step 4: Simplify right side
    18,722,580.90x = 491,411,631,433,268.38
  5. Step 5: Solve for x
    x = 491,411,631,433,268.38/18,722,580.90
  6. Step 6: Final answer
    x = 26,247,002.70

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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.