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Finding the Fourth Proportional to 18,453.32, 27,679.97 and 4,602.32

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Solution

The fourth proportional to 18,453.32, 27,679.97 and 4,602.32 is: 6,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.32 : 27,679.97 = 4,602.32 : x
  2. Step 2: Convert to fraction form
    18,453.32/27,679.97 = 4,602.32/x
  3. Step 3: Cross multiply
    18,453.32x = 27,679.97 × 4,602.32
  4. Step 4: Simplify right side
    18,453.32x = 127,391,941.13
  5. Step 5: Solve for x
    x = 127,391,941.13/18,453.32
  6. Step 6: Final answer
    x = 6,903.47

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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.