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Finding the Fourth Proportional to 13,597.68, 20,362.68 and 8,652.72

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Solution

The fourth proportional to 13,597.68, 20,362.68 and 8,652.72 is: 12,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.68 : 20,362.68 = 8,652.72 : x
  2. Step 2: Convert to fraction form
    13,597.68/20,362.68 = 8,652.72/x
  3. Step 3: Cross multiply
    13,597.68x = 20,362.68 × 8,652.72
  4. Step 4: Simplify right side
    13,597.68x = 176,192,568.49
  5. Step 5: Solve for x
    x = 176,192,568.49/13,597.68
  6. Step 6: Final answer
    x = 12,957.55

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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.