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Finding the Fourth Proportional to 14,642.14, 20,206.02 and 7,927.60

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Solution

The fourth proportional to 14,642.14, 20,206.02 and 7,927.60 is: 10,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.14 : 20,206.02 = 7,927.60 : x
  2. Step 2: Convert to fraction form
    14,642.14/20,206.02 = 7,927.60/x
  3. Step 3: Cross multiply
    14,642.14x = 20,206.02 × 7,927.60
  4. Step 4: Simplify right side
    14,642.14x = 160,185,244.15
  5. Step 5: Solve for x
    x = 160,185,244.15/14,642.14
  6. Step 6: Final answer
    x = 10,940.02

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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.