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Finding the Fourth Proportional to 18,562.89, 27,853.56 and 8,702.93

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Solution

The fourth proportional to 18,562.89, 27,853.56 and 8,702.93 is: 13,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.89 : 27,853.56 = 8,702.93 : x
  2. Step 2: Convert to fraction form
    18,562.89/27,853.56 = 8,702.93/x
  3. Step 3: Cross multiply
    18,562.89x = 27,853.56 × 8,702.93
  4. Step 4: Simplify right side
    18,562.89x = 242,407,443.66
  5. Step 5: Solve for x
    x = 242,407,443.66/18,562.89
  6. Step 6: Final answer
    x = 13,058.71

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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.