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Finding the Fourth Proportional to 7,360.70, 11,041.05 and 2,978.19

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Solution

The fourth proportional to 7,360.70, 11,041.05 and 2,978.19 is: 4,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360.70 : 11,041.05 = 2,978.19 : x
  2. Step 2: Convert to fraction form
    7,360.70/11,041.05 = 2,978.19/x
  3. Step 3: Cross multiply
    7,360.70x = 11,041.05 × 2,978.19
  4. Step 4: Simplify right side
    7,360.70x = 32,882,344.70
  5. Step 5: Solve for x
    x = 32,882,344.70/7,360.70
  6. Step 6: Final answer
    x = 4,467.29

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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.