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Finding the Fourth Proportional to 10,367.99, 15,549.54 and 7,080.20

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Solution

The fourth proportional to 10,367.99, 15,549.54 and 7,080.20 is: 10,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.99 : 15,549.54 = 7,080.20 : x
  2. Step 2: Convert to fraction form
    10,367.99/15,549.54 = 7,080.20/x
  3. Step 3: Cross multiply
    10,367.99x = 15,549.54 × 7,080.20
  4. Step 4: Simplify right side
    10,367.99x = 110,093,775.36
  5. Step 5: Solve for x
    x = 110,093,775.36/10,367.99
  6. Step 6: Final answer
    x = 10,618.63

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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.