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Finding the Fourth Proportional to 7,909.58, 11,873.63 and 5,559.98

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Solution

The fourth proportional to 7,909.58, 11,873.63 and 5,559.98 is: 8,346.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.58 : 11,873.63 = 5,559.98 : x
  2. Step 2: Convert to fraction form
    7,909.58/11,873.63 = 5,559.98/x
  3. Step 3: Cross multiply
    7,909.58x = 11,873.63 × 5,559.98
  4. Step 4: Simplify right side
    7,909.58x = 66,017,099.86
  5. Step 5: Solve for x
    x = 66,017,099.86/7,909.58
  6. Step 6: Final answer
    x = 8,346.47

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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.