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Finding the Fourth Proportional to 8,354,978.69, 11,533,647.74 and 5,262,047.15

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Solution

The fourth proportional to 8,354,978.69, 11,533,647.74 and 5,262,047.15 is: 7,264,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354,978.69 : 11,533,647.74 = 5,262,047.15 : x
  2. Step 2: Convert to fraction form
    8,354,978.69/11,533,647.74 = 5,262,047.15/x
  3. Step 3: Cross multiply
    8,354,978.69x = 11,533,647.74 × 5,262,047.15
  4. Step 4: Simplify right side
    8,354,978.69x = 60,690,598,135,392.46
  5. Step 5: Solve for x
    x = 60,690,598,135,392.46/8,354,978.69
  6. Step 6: Final answer
    x = 7,264,003.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.