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Finding the Fourth Proportional to 10,908.08, 15,053.04 and 5,940.08

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Solution

The fourth proportional to 10,908.08, 15,053.04 and 5,940.08 is: 8,197.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.08 : 15,053.04 = 5,940.08 : x
  2. Step 2: Convert to fraction form
    10,908.08/15,053.04 = 5,940.08/x
  3. Step 3: Cross multiply
    10,908.08x = 15,053.04 × 5,940.08
  4. Step 4: Simplify right side
    10,908.08x = 89,416,261.84
  5. Step 5: Solve for x
    x = 89,416,261.84/10,908.08
  6. Step 6: Final answer
    x = 8,197.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.