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Finding the Fourth Proportional to 13,593.76, 18,753.04 and 8,555.68

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Solution

The fourth proportional to 13,593.76, 18,753.04 and 8,555.68 is: 11,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.76 : 18,753.04 = 8,555.68 : x
  2. Step 2: Convert to fraction form
    13,593.76/18,753.04 = 8,555.68/x
  3. Step 3: Cross multiply
    13,593.76x = 18,753.04 × 8,555.68
  4. Step 4: Simplify right side
    13,593.76x = 160,445,009.27
  5. Step 5: Solve for x
    x = 160,445,009.27/13,593.76
  6. Step 6: Final answer
    x = 11,802.84

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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.