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Finding the Fourth Proportional to 5,779.69, 7,974.58 and 3,510.99

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Solution

The fourth proportional to 5,779.69, 7,974.58 and 3,510.99 is: 4,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.69 : 7,974.58 = 3,510.99 : x
  2. Step 2: Convert to fraction form
    5,779.69/7,974.58 = 3,510.99/x
  3. Step 3: Cross multiply
    5,779.69x = 7,974.58 × 3,510.99
  4. Step 4: Simplify right side
    5,779.69x = 27,998,670.63
  5. Step 5: Solve for x
    x = 27,998,670.63/5,779.69
  6. Step 6: Final answer
    x = 4,844.32

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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.