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Finding the Fourth Proportional to 14,190.43, 19,562.34 and 9,928.29

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Solution

The fourth proportional to 14,190.43, 19,562.34 and 9,928.29 is: 13,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.43 : 19,562.34 = 9,928.29 : x
  2. Step 2: Convert to fraction form
    14,190.43/19,562.34 = 9,928.29/x
  3. Step 3: Cross multiply
    14,190.43x = 19,562.34 × 9,928.29
  4. Step 4: Simplify right side
    14,190.43x = 194,220,446.36
  5. Step 5: Solve for x
    x = 194,220,446.36/14,190.43
  6. Step 6: Final answer
    x = 13,686.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.