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Finding the Fourth Proportional to 14,884.93, 20,540.88 and 8,511.87

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Solution

The fourth proportional to 14,884.93, 20,540.88 and 8,511.87 is: 11,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,884.93 : 20,540.88 = 8,511.87 : x
  2. Step 2: Convert to fraction form
    14,884.93/20,540.88 = 8,511.87/x
  3. Step 3: Cross multiply
    14,884.93x = 20,540.88 × 8,511.87
  4. Step 4: Simplify right side
    14,884.93x = 174,841,390.28
  5. Step 5: Solve for x
    x = 174,841,390.28/14,884.93
  6. Step 6: Final answer
    x = 11,746.20

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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.