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Finding the Fourth Proportional to 19,296.29, 28,914.54 and 13,384.67

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Solution

The fourth proportional to 19,296.29, 28,914.54 and 13,384.67 is: 20,056.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.29 : 28,914.54 = 13,384.67 : x
  2. Step 2: Convert to fraction form
    19,296.29/28,914.54 = 13,384.67/x
  3. Step 3: Cross multiply
    19,296.29x = 28,914.54 × 13,384.67
  4. Step 4: Simplify right side
    19,296.29x = 387,011,485.74
  5. Step 5: Solve for x
    x = 387,011,485.74/19,296.29
  6. Step 6: Final answer
    x = 20,056.27

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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.