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Finding the Fourth Proportional to 18,587.57, 27,885.74 and 6,107.63

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Solution

The fourth proportional to 18,587.57, 27,885.74 and 6,107.63 is: 9,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.57 : 27,885.74 = 6,107.63 : x
  2. Step 2: Convert to fraction form
    18,587.57/27,885.74 = 6,107.63/x
  3. Step 3: Cross multiply
    18,587.57x = 27,885.74 × 6,107.63
  4. Step 4: Simplify right side
    18,587.57x = 170,315,612.23
  5. Step 5: Solve for x
    x = 170,315,612.23/18,587.57
  6. Step 6: Final answer
    x = 9,162.88

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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.