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Finding the Fourth Proportional to 5,779.24, 7,975.46 and 3,390.93

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Solution

The fourth proportional to 5,779.24, 7,975.46 and 3,390.93 is: 4,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.24 : 7,975.46 = 3,390.93 : x
  2. Step 2: Convert to fraction form
    5,779.24/7,975.46 = 3,390.93/x
  3. Step 3: Cross multiply
    5,779.24x = 7,975.46 × 3,390.93
  4. Step 4: Simplify right side
    5,779.24x = 27,044,226.58
  5. Step 5: Solve for x
    x = 27,044,226.58/5,779.24
  6. Step 6: Final answer
    x = 4,679.55

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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.