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Finding the Fourth Proportional to 7,196.80, 10,784.40 and 6,095.20

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Solution

The fourth proportional to 7,196.80, 10,784.40 and 6,095.20 is: 9,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,196.80 : 10,784.40 = 6,095.20 : x
  2. Step 2: Convert to fraction form
    7,196.80/10,784.40 = 6,095.20/x
  3. Step 3: Cross multiply
    7,196.80x = 10,784.40 × 6,095.20
  4. Step 4: Simplify right side
    7,196.80x = 65,733,074.88
  5. Step 5: Solve for x
    x = 65,733,074.88/7,196.80
  6. Step 6: Final answer
    x = 9,133.65

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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.