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Finding the Fourth Proportional to 9,184.59, 13,779.01 and 3,919.79

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Solution

The fourth proportional to 9,184.59, 13,779.01 and 3,919.79 is: 5,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,184.59 : 13,779.01 = 3,919.79 : x
  2. Step 2: Convert to fraction form
    9,184.59/13,779.01 = 3,919.79/x
  3. Step 3: Cross multiply
    9,184.59x = 13,779.01 × 3,919.79
  4. Step 4: Simplify right side
    9,184.59x = 54,010,864.96
  5. Step 5: Solve for x
    x = 54,010,864.96/9,184.59
  6. Step 6: Final answer
    x = 5,880.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.