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Finding the Fourth Proportional to 28,296,447.15, 42,444,670.73 and 28,296,447.15

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Solution

The fourth proportional to 28,296,447.15, 42,444,670.73 and 28,296,447.15 is: 42,444,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296,447.15 : 42,444,670.73 = 28,296,447.15 : x
  2. Step 2: Convert to fraction form
    28,296,447.15/42,444,670.73 = 28,296,447.15/x
  3. Step 3: Cross multiply
    28,296,447.15x = 42,444,670.73 × 28,296,447.15
  4. Step 4: Simplify right side
    28,296,447.15x = 1,201,033,381,969,114.75
  5. Step 5: Solve for x
    x = 1,201,033,381,969,114.75/28,296,447.15
  6. Step 6: Final answer
    x = 42,444,670.73

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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.