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Finding the Fourth Proportional to 13,793.60, 20,714.70 and 10,681.18

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Solution

The fourth proportional to 13,793.60, 20,714.70 and 10,681.18 is: 16,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.60 : 20,714.70 = 10,681.18 : x
  2. Step 2: Convert to fraction form
    13,793.60/20,714.70 = 10,681.18/x
  3. Step 3: Cross multiply
    13,793.60x = 20,714.70 × 10,681.18
  4. Step 4: Simplify right side
    13,793.60x = 221,257,335.77
  5. Step 5: Solve for x
    x = 221,257,335.77/13,793.60
  6. Step 6: Final answer
    x = 16,040.58

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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.