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Finding the Fourth Proportional to 14,052.79, 19,390.89 and 13,674.79

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Solution

The fourth proportional to 14,052.79, 19,390.89 and 13,674.79 is: 18,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.79 : 19,390.89 = 13,674.79 : x
  2. Step 2: Convert to fraction form
    14,052.79/19,390.89 = 13,674.79/x
  3. Step 3: Cross multiply
    14,052.79x = 19,390.89 × 13,674.79
  4. Step 4: Simplify right side
    14,052.79x = 265,166,348.66
  5. Step 5: Solve for x
    x = 265,166,348.66/14,052.79
  6. Step 6: Final answer
    x = 18,869.30

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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.