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Finding the Fourth Proportional to 17,389.60, 26,007.60 and 14,624.80

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Solution

The fourth proportional to 17,389.60, 26,007.60 and 14,624.80 is: 21,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389.60 : 26,007.60 = 14,624.80 : x
  2. Step 2: Convert to fraction form
    17,389.60/26,007.60 = 14,624.80/x
  3. Step 3: Cross multiply
    17,389.60x = 26,007.60 × 14,624.80
  4. Step 4: Simplify right side
    17,389.60x = 380,355,948.48
  5. Step 5: Solve for x
    x = 380,355,948.48/17,389.60
  6. Step 6: Final answer
    x = 21,872.61

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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.