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Finding the Fourth Proportional to 21,992.22, 32,987.86 and 5,352.35

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Solution

The fourth proportional to 21,992.22, 32,987.86 and 5,352.35 is: 8,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.22 : 32,987.86 = 5,352.35 : x
  2. Step 2: Convert to fraction form
    21,992.22/32,987.86 = 5,352.35/x
  3. Step 3: Cross multiply
    21,992.22x = 32,987.86 × 5,352.35
  4. Step 4: Simplify right side
    21,992.22x = 176,562,394.15
  5. Step 5: Solve for x
    x = 176,562,394.15/21,992.22
  6. Step 6: Final answer
    x = 8,028.40

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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.