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Finding the Fourth Proportional to 16,809.60, 25,214.40 and 10,248.60

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Solution

The fourth proportional to 16,809.60, 25,214.40 and 10,248.60 is: 15,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.60 : 25,214.40 = 10,248.60 : x
  2. Step 2: Convert to fraction form
    16,809.60/25,214.40 = 10,248.60/x
  3. Step 3: Cross multiply
    16,809.60x = 25,214.40 × 10,248.60
  4. Step 4: Simplify right side
    16,809.60x = 258,412,299.84
  5. Step 5: Solve for x
    x = 258,412,299.84/16,809.60
  6. Step 6: Final answer
    x = 15,372.90

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Similar ratio
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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.