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Finding the Fourth Proportional to 18,646.58, 27,969.87 and 4,794.50

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Solution

The fourth proportional to 18,646.58, 27,969.87 and 4,794.50 is: 7,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.58 : 27,969.87 = 4,794.50 : x
  2. Step 2: Convert to fraction form
    18,646.58/27,969.87 = 4,794.50/x
  3. Step 3: Cross multiply
    18,646.58x = 27,969.87 × 4,794.50
  4. Step 4: Simplify right side
    18,646.58x = 134,101,541.72
  5. Step 5: Solve for x
    x = 134,101,541.72/18,646.58
  6. Step 6: Final answer
    x = 7,191.75

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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.