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Finding the Fourth Proportional to 13,654.08, 20,484.24 and 5,865.12

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Solution

The fourth proportional to 13,654.08, 20,484.24 and 5,865.12 is: 8,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.08 : 20,484.24 = 5,865.12 : x
  2. Step 2: Convert to fraction form
    13,654.08/20,484.24 = 5,865.12/x
  3. Step 3: Cross multiply
    13,654.08x = 20,484.24 × 5,865.12
  4. Step 4: Simplify right side
    13,654.08x = 120,142,525.71
  5. Step 5: Solve for x
    x = 120,142,525.71/13,654.08
  6. Step 6: Final answer
    x = 8,799.02

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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.