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Finding the Fourth Proportional to 18,574.34, 27,874.60 and 8,713.94

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Solution

The fourth proportional to 18,574.34, 27,874.60 and 8,713.94 is: 13,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.34 : 27,874.60 = 8,713.94 : x
  2. Step 2: Convert to fraction form
    18,574.34/27,874.60 = 8,713.94/x
  3. Step 3: Cross multiply
    18,574.34x = 27,874.60 × 8,713.94
  4. Step 4: Simplify right side
    18,574.34x = 242,897,430.77
  5. Step 5: Solve for x
    x = 242,897,430.77/18,574.34
  6. Step 6: Final answer
    x = 13,077.05

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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.