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Finding the Fourth Proportional to 18,458.40, 27,701.02 and 7,368.26

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Solution

The fourth proportional to 18,458.40, 27,701.02 and 7,368.26 is: 11,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.40 : 27,701.02 = 7,368.26 : x
  2. Step 2: Convert to fraction form
    18,458.40/27,701.02 = 7,368.26/x
  3. Step 3: Cross multiply
    18,458.40x = 27,701.02 × 7,368.26
  4. Step 4: Simplify right side
    18,458.40x = 204,108,317.63
  5. Step 5: Solve for x
    x = 204,108,317.63/18,458.40
  6. Step 6: Final answer
    x = 11,057.75

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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.