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Finding the Fourth Proportional to 10,779.44, 14,879.56 and 6,803.14

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Solution

The fourth proportional to 10,779.44, 14,879.56 and 6,803.14 is: 9,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.44 : 14,879.56 = 6,803.14 : x
  2. Step 2: Convert to fraction form
    10,779.44/14,879.56 = 6,803.14/x
  3. Step 3: Cross multiply
    10,779.44x = 14,879.56 × 6,803.14
  4. Step 4: Simplify right side
    10,779.44x = 101,227,729.82
  5. Step 5: Solve for x
    x = 101,227,729.82/10,779.44
  6. Step 6: Final answer
    x = 9,390.82

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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.