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Finding the Fourth Proportional to 18,557.44, 27,835.44 and 6,078.40

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Solution

The fourth proportional to 18,557.44, 27,835.44 and 6,078.40 is: 9,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.44 : 27,835.44 = 6,078.40 : x
  2. Step 2: Convert to fraction form
    18,557.44/27,835.44 = 6,078.40/x
  3. Step 3: Cross multiply
    18,557.44x = 27,835.44 × 6,078.40
  4. Step 4: Simplify right side
    18,557.44x = 169,194,938.50
  5. Step 5: Solve for x
    x = 169,194,938.50/18,557.44
  6. Step 6: Final answer
    x = 9,117.36

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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.