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Finding the Fourth Proportional to 14,992.90, 20,683.34 and 8,701.62

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Solution

The fourth proportional to 14,992.90, 20,683.34 and 8,701.62 is: 12,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.90 : 20,683.34 = 8,701.62 : x
  2. Step 2: Convert to fraction form
    14,992.90/20,683.34 = 8,701.62/x
  3. Step 3: Cross multiply
    14,992.90x = 20,683.34 × 8,701.62
  4. Step 4: Simplify right side
    14,992.90x = 179,978,565.01
  5. Step 5: Solve for x
    x = 179,978,565.01/14,992.90
  6. Step 6: Final answer
    x = 12,004.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.