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Finding the Fourth Proportional to 18,567.68, 27,832.88 and 7,472.32

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Solution

The fourth proportional to 18,567.68, 27,832.88 and 7,472.32 is: 11,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.68 : 27,832.88 = 7,472.32 : x
  2. Step 2: Convert to fraction form
    18,567.68/27,832.88 = 7,472.32/x
  3. Step 3: Cross multiply
    18,567.68x = 27,832.88 × 7,472.32
  4. Step 4: Simplify right side
    18,567.68x = 207,976,185.88
  5. Step 5: Solve for x
    x = 207,976,185.88/18,567.68
  6. Step 6: Final answer
    x = 11,200.98

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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.