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Finding the Fourth Proportional to 7,178.95, 10,760.72 and 3,476.08

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Solution

The fourth proportional to 7,178.95, 10,760.72 and 3,476.08 is: 5,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.95 : 10,760.72 = 3,476.08 : x
  2. Step 2: Convert to fraction form
    7,178.95/10,760.72 = 3,476.08/x
  3. Step 3: Cross multiply
    7,178.95x = 10,760.72 × 3,476.08
  4. Step 4: Simplify right side
    7,178.95x = 37,405,069.77
  5. Step 5: Solve for x
    x = 37,405,069.77/7,178.95
  6. Step 6: Final answer
    x = 5,210.39

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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.