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Finding the Fourth Proportional to 22,103.64, 33,158.88 and 7,316.28

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Solution

The fourth proportional to 22,103.64, 33,158.88 and 7,316.28 is: 10,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.64 : 33,158.88 = 7,316.28 : x
  2. Step 2: Convert to fraction form
    22,103.64/33,158.88 = 7,316.28/x
  3. Step 3: Cross multiply
    22,103.64x = 33,158.88 × 7,316.28
  4. Step 4: Simplify right side
    22,103.64x = 242,599,650.57
  5. Step 5: Solve for x
    x = 242,599,650.57/22,103.64
  6. Step 6: Final answer
    x = 10,975.55

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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.