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Finding the Fourth Proportional to 18,043.59, 24,885.50 and 13,787.89

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Solution

The fourth proportional to 18,043.59, 24,885.50 and 13,787.89 is: 19,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,043.59 : 24,885.50 = 13,787.89 : x
  2. Step 2: Convert to fraction form
    18,043.59/24,885.50 = 13,787.89/x
  3. Step 3: Cross multiply
    18,043.59x = 24,885.50 × 13,787.89
  4. Step 4: Simplify right side
    18,043.59x = 343,118,405.44
  5. Step 5: Solve for x
    x = 343,118,405.44/18,043.59
  6. Step 6: Final answer
    x = 19,016.08

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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.