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Finding the Fourth Proportional to 10,636.70, 14,676.53 and 5,920.07

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Solution

The fourth proportional to 10,636.70, 14,676.53 and 5,920.07 is: 8,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.70 : 14,676.53 = 5,920.07 : x
  2. Step 2: Convert to fraction form
    10,636.70/14,676.53 = 5,920.07/x
  3. Step 3: Cross multiply
    10,636.70x = 14,676.53 × 5,920.07
  4. Step 4: Simplify right side
    10,636.70x = 86,885,981.97
  5. Step 5: Solve for x
    x = 86,885,981.97/10,636.70
  6. Step 6: Final answer
    x = 8,168.51

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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.