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Finding the Fourth Proportional to 18,201.61, 27,308.98 and 6,357.13

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Solution

The fourth proportional to 18,201.61, 27,308.98 and 6,357.13 is: 9,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.61 : 27,308.98 = 6,357.13 : x
  2. Step 2: Convert to fraction form
    18,201.61/27,308.98 = 6,357.13/x
  3. Step 3: Cross multiply
    18,201.61x = 27,308.98 × 6,357.13
  4. Step 4: Simplify right side
    18,201.61x = 173,606,599.48
  5. Step 5: Solve for x
    x = 173,606,599.48/18,201.61
  6. Step 6: Final answer
    x = 9,537.98

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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.