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Finding the Fourth Proportional to 12,476.04, 18,714.03 and 5,078.75

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Solution

The fourth proportional to 12,476.04, 18,714.03 and 5,078.75 is: 7,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.04 : 18,714.03 = 5,078.75 : x
  2. Step 2: Convert to fraction form
    12,476.04/18,714.03 = 5,078.75/x
  3. Step 3: Cross multiply
    12,476.04x = 18,714.03 × 5,078.75
  4. Step 4: Simplify right side
    12,476.04x = 95,043,786.29
  5. Step 5: Solve for x
    x = 95,043,786.29/12,476.04
  6. Step 6: Final answer
    x = 7,618.11

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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.