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Finding the Fourth Proportional to 14,903.13, 20,566.77 and 8,188.96

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Solution

The fourth proportional to 14,903.13, 20,566.77 and 8,188.96 is: 11,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.13 : 20,566.77 = 8,188.96 : x
  2. Step 2: Convert to fraction form
    14,903.13/20,566.77 = 8,188.96/x
  3. Step 3: Cross multiply
    14,903.13x = 20,566.77 × 8,188.96
  4. Step 4: Simplify right side
    14,903.13x = 168,420,456.86
  5. Step 5: Solve for x
    x = 168,420,456.86/14,903.13
  6. Step 6: Final answer
    x = 11,301.01

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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.