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Finding the Fourth Proportional to 18,801.37, 28,177.44 and 7,695.39

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Solution

The fourth proportional to 18,801.37, 28,177.44 and 7,695.39 is: 11,533.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.37 : 28,177.44 = 7,695.39 : x
  2. Step 2: Convert to fraction form
    18,801.37/28,177.44 = 7,695.39/x
  3. Step 3: Cross multiply
    18,801.37x = 28,177.44 × 7,695.39
  4. Step 4: Simplify right side
    18,801.37x = 216,836,492.11
  5. Step 5: Solve for x
    x = 216,836,492.11/18,801.37
  6. Step 6: Final answer
    x = 11,533.02

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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.