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Finding the Fourth Proportional to 13,592.90, 18,772.46 and 9,354.90

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Solution

The fourth proportional to 13,592.90, 18,772.46 and 9,354.90 is: 12,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.90 : 18,772.46 = 9,354.90 : x
  2. Step 2: Convert to fraction form
    13,592.90/18,772.46 = 9,354.90/x
  3. Step 3: Cross multiply
    13,592.90x = 18,772.46 × 9,354.90
  4. Step 4: Simplify right side
    13,592.90x = 175,614,439.28
  5. Step 5: Solve for x
    x = 175,614,439.28/13,592.90
  6. Step 6: Final answer
    x = 12,919.58

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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.