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Finding the Fourth Proportional to 18,483.12, 25,508.16 and 10,525.68

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Solution

The fourth proportional to 18,483.12, 25,508.16 and 10,525.68 is: 14,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.12 : 25,508.16 = 10,525.68 : x
  2. Step 2: Convert to fraction form
    18,483.12/25,508.16 = 10,525.68/x
  3. Step 3: Cross multiply
    18,483.12x = 25,508.16 × 10,525.68
  4. Step 4: Simplify right side
    18,483.12x = 268,490,729.55
  5. Step 5: Solve for x
    x = 268,490,729.55/18,483.12
  6. Step 6: Final answer
    x = 14,526.27

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Similar ratio
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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.