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Finding the Fourth Proportional to 18,722,581.40, 26,247,003.40 and 18,722,581.40

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Solution

The fourth proportional to 18,722,581.40, 26,247,003.40 and 18,722,581.40 is: 26,247,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,581.40 : 26,247,003.40 = 18,722,581.40 : x
  2. Step 2: Convert to fraction form
    18,722,581.40/26,247,003.40 = 18,722,581.40/x
  3. Step 3: Cross multiply
    18,722,581.40x = 26,247,003.40 × 18,722,581.40
  4. Step 4: Simplify right side
    18,722,581.40x = 491,411,657,662,576.69
  5. Step 5: Solve for x
    x = 491,411,657,662,576.69/18,722,581.40
  6. Step 6: Final answer
    x = 26,247,003.40

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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.