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Finding the Fourth Proportional to 11,777.75, 16,260.02 and 7,804.24

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Solution

The fourth proportional to 11,777.75, 16,260.02 and 7,804.24 is: 10,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.75 : 16,260.02 = 7,804.24 : x
  2. Step 2: Convert to fraction form
    11,777.75/16,260.02 = 7,804.24/x
  3. Step 3: Cross multiply
    11,777.75x = 16,260.02 × 7,804.24
  4. Step 4: Simplify right side
    11,777.75x = 126,897,018.81
  5. Step 5: Solve for x
    x = 126,897,018.81/11,777.75
  6. Step 6: Final answer
    x = 10,774.31

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1.5x scale

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.