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Finding the Fourth Proportional to 25,097,978.10, 37,646,189.55 and 7,147,082.10

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Solution

The fourth proportional to 25,097,978.10, 37,646,189.55 and 7,147,082.10 is: 10,720,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,097,978.10 : 37,646,189.55 = 7,147,082.10 : x
  2. Step 2: Convert to fraction form
    25,097,978.10/37,646,189.55 = 7,147,082.10/x
  3. Step 3: Cross multiply
    25,097,978.10x = 37,646,189.55 × 7,147,082.10
  4. Step 4: Simplify right side
    25,097,978.10x = 269,060,407,466,012.03
  5. Step 5: Solve for x
    x = 269,060,407,466,012.03/25,097,978.10
  6. Step 6: Final answer
    x = 10,720,401.71

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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.