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Finding the Fourth Proportional to 7,378.68, 11,069.17 and 2,996.45

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Solution

The fourth proportional to 7,378.68, 11,069.17 and 2,996.45 is: 4,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.68 : 11,069.17 = 2,996.45 : x
  2. Step 2: Convert to fraction form
    7,378.68/11,069.17 = 2,996.45/x
  3. Step 3: Cross multiply
    7,378.68x = 11,069.17 × 2,996.45
  4. Step 4: Simplify right side
    7,378.68x = 33,168,214.45
  5. Step 5: Solve for x
    x = 33,168,214.45/7,378.68
  6. Step 6: Final answer
    x = 4,495.14

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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.