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Finding the Fourth Proportional to 18,607.13, 27,860.91 and 15,654.68

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Solution

The fourth proportional to 18,607.13, 27,860.91 and 15,654.68 is: 23,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.13 : 27,860.91 = 15,654.68 : x
  2. Step 2: Convert to fraction form
    18,607.13/27,860.91 = 15,654.68/x
  3. Step 3: Cross multiply
    18,607.13x = 27,860.91 × 15,654.68
  4. Step 4: Simplify right side
    18,607.13x = 436,153,630.56
  5. Step 5: Solve for x
    x = 436,153,630.56/18,607.13
  6. Step 6: Final answer
    x = 23,440.13

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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.