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Finding the Fourth Proportional to 13,593.96, 18,765 and 9,635.76

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Solution

The fourth proportional to 13,593.96, 18,765 and 9,635.76 is: 13,301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.96 : 18,765 = 9,635.76 : x
  2. Step 2: Convert to fraction form
    13,593.96/18,765 = 9,635.76/x
  3. Step 3: Cross multiply
    13,593.96x = 18,765 × 9,635.76
  4. Step 4: Simplify right side
    13,593.96x = 180,815,036.40
  5. Step 5: Solve for x
    x = 180,815,036.40/13,593.96
  6. Step 6: Final answer
    x = 13,301.13

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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.