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Finding the Fourth Proportional to 13,800.02, 20,701.13 and 4,917.29

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Solution

The fourth proportional to 13,800.02, 20,701.13 and 4,917.29 is: 7,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.02 : 20,701.13 = 4,917.29 : x
  2. Step 2: Convert to fraction form
    13,800.02/20,701.13 = 4,917.29/x
  3. Step 3: Cross multiply
    13,800.02x = 20,701.13 × 4,917.29
  4. Step 4: Simplify right side
    13,800.02x = 101,793,331.45
  5. Step 5: Solve for x
    x = 101,793,331.45/13,800.02
  6. Step 6: Final answer
    x = 7,376.32

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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.