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Finding the Fourth Proportional to 14,904.13, 20,568.15 and 8,189.96

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Solution

The fourth proportional to 14,904.13, 20,568.15 and 8,189.96 is: 11,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.13 : 20,568.15 = 8,189.96 : x
  2. Step 2: Convert to fraction form
    14,904.13/20,568.15 = 8,189.96/x
  3. Step 3: Cross multiply
    14,904.13x = 20,568.15 × 8,189.96
  4. Step 4: Simplify right side
    14,904.13x = 168,452,325.77
  5. Step 5: Solve for x
    x = 168,452,325.77/14,904.13
  6. Step 6: Final answer
    x = 11,302.40

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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.