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Finding the Fourth Proportional to 8,763.96, 13,142.71 and 6,893.51

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Solution

The fourth proportional to 8,763.96, 13,142.71 and 6,893.51 is: 10,337.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.96 : 13,142.71 = 6,893.51 : x
  2. Step 2: Convert to fraction form
    8,763.96/13,142.71 = 6,893.51/x
  3. Step 3: Cross multiply
    8,763.96x = 13,142.71 × 6,893.51
  4. Step 4: Simplify right side
    8,763.96x = 90,599,402.81
  5. Step 5: Solve for x
    x = 90,599,402.81/8,763.96
  6. Step 6: Final answer
    x = 10,337.72

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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.