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Finding the Fourth Proportional to 16,609.60, 24,914.40 and 13,110.40

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Solution

The fourth proportional to 16,609.60, 24,914.40 and 13,110.40 is: 19,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609.60 : 24,914.40 = 13,110.40 : x
  2. Step 2: Convert to fraction form
    16,609.60/24,914.40 = 13,110.40/x
  3. Step 3: Cross multiply
    16,609.60x = 24,914.40 × 13,110.40
  4. Step 4: Simplify right side
    16,609.60x = 326,637,749.76
  5. Step 5: Solve for x
    x = 326,637,749.76/16,609.60
  6. Step 6: Final answer
    x = 19,665.60

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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.