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Finding the Fourth Proportional to 18,693,690.30, 26,241,945.30 and 18,693,690.30

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Solution

The fourth proportional to 18,693,690.30, 26,241,945.30 and 18,693,690.30 is: 26,241,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,690.30 : 26,241,945.30 = 18,693,690.30 : x
  2. Step 2: Convert to fraction form
    18,693,690.30/26,241,945.30 = 18,693,690.30/x
  3. Step 3: Cross multiply
    18,693,690.30x = 26,241,945.30 × 18,693,690.30
  4. Step 4: Simplify right side
    18,693,690.30x = 490,558,798,307,740.62
  5. Step 5: Solve for x
    x = 490,558,798,307,740.62/18,693,690.30
  6. Step 6: Final answer
    x = 26,241,945.30

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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.