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Finding the Fourth Proportional to 10,636.96, 14,677.28 and 5,921.12

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Solution

The fourth proportional to 10,636.96, 14,677.28 and 5,921.12 is: 8,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.96 : 14,677.28 = 5,921.12 : x
  2. Step 2: Convert to fraction form
    10,636.96/14,677.28 = 5,921.12/x
  3. Step 3: Cross multiply
    10,636.96x = 14,677.28 × 5,921.12
  4. Step 4: Simplify right side
    10,636.96x = 86,905,936.15
  5. Step 5: Solve for x
    x = 86,905,936.15/10,636.96
  6. Step 6: Final answer
    x = 8,170.19

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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.