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Finding the Fourth Proportional to 7,295.68, 10,941.12 and 6,211.84

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Solution

The fourth proportional to 7,295.68, 10,941.12 and 6,211.84 is: 9,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295.68 : 10,941.12 = 6,211.84 : x
  2. Step 2: Convert to fraction form
    7,295.68/10,941.12 = 6,211.84/x
  3. Step 3: Cross multiply
    7,295.68x = 10,941.12 × 6,211.84
  4. Step 4: Simplify right side
    7,295.68x = 67,964,486.86
  5. Step 5: Solve for x
    x = 67,964,486.86/7,295.68
  6. Step 6: Final answer
    x = 9,315.72

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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.