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Finding the Fourth Proportional to 19,884.96, 27,485.12 and 17,476.86

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Solution

The fourth proportional to 19,884.96, 27,485.12 and 17,476.86 is: 24,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.96 : 27,485.12 = 17,476.86 : x
  2. Step 2: Convert to fraction form
    19,884.96/27,485.12 = 17,476.86/x
  3. Step 3: Cross multiply
    19,884.96x = 27,485.12 × 17,476.86
  4. Step 4: Simplify right side
    19,884.96x = 480,353,741.08
  5. Step 5: Solve for x
    x = 480,353,741.08/19,884.96
  6. Step 6: Final answer
    x = 24,156.64

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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.