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Finding the Fourth Proportional to 13,363.51, 18,435.15 and 8,827.97

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Solution

The fourth proportional to 13,363.51, 18,435.15 and 8,827.97 is: 12,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.51 : 18,435.15 = 8,827.97 : x
  2. Step 2: Convert to fraction form
    13,363.51/18,435.15 = 8,827.97/x
  3. Step 3: Cross multiply
    13,363.51x = 18,435.15 × 8,827.97
  4. Step 4: Simplify right side
    13,363.51x = 162,744,858.97
  5. Step 5: Solve for x
    x = 162,744,858.97/13,363.51
  6. Step 6: Final answer
    x = 12,178.30

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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.