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Finding the Fourth Proportional to 7,213.12, 9,950.08 and 4,559.52

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Solution

The fourth proportional to 7,213.12, 9,950.08 and 4,559.52 is: 6,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.12 : 9,950.08 = 4,559.52 : x
  2. Step 2: Convert to fraction form
    7,213.12/9,950.08 = 4,559.52/x
  3. Step 3: Cross multiply
    7,213.12x = 9,950.08 × 4,559.52
  4. Step 4: Simplify right side
    7,213.12x = 45,367,588.76
  5. Step 5: Solve for x
    x = 45,367,588.76/7,213.12
  6. Step 6: Final answer
    x = 6,289.59

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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.