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Finding the Fourth Proportional to 13,714.02, 18,918.03 and 9,230.10

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Solution

The fourth proportional to 13,714.02, 18,918.03 and 9,230.10 is: 12,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.02 : 18,918.03 = 9,230.10 : x
  2. Step 2: Convert to fraction form
    13,714.02/18,918.03 = 9,230.10/x
  3. Step 3: Cross multiply
    13,714.02x = 18,918.03 × 9,230.10
  4. Step 4: Simplify right side
    13,714.02x = 174,615,308.70
  5. Step 5: Solve for x
    x = 174,615,308.70/13,714.02
  6. Step 6: Final answer
    x = 12,732.61

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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.