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Finding the Fourth Proportional to 19,152.96, 28,729.26 and 6,672.96

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Solution

The fourth proportional to 19,152.96, 28,729.26 and 6,672.96 is: 10,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.96 : 28,729.26 = 6,672.96 : x
  2. Step 2: Convert to fraction form
    19,152.96/28,729.26 = 6,672.96/x
  3. Step 3: Cross multiply
    19,152.96x = 28,729.26 × 6,672.96
  4. Step 4: Simplify right side
    19,152.96x = 191,709,202.81
  5. Step 5: Solve for x
    x = 191,709,202.81/19,152.96
  6. Step 6: Final answer
    x = 10,009.38

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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.