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Finding the Fourth Proportional to 18,543.58, 25,590.09 and 10,588.30

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Solution

The fourth proportional to 18,543.58, 25,590.09 and 10,588.30 is: 14,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.58 : 25,590.09 = 10,588.30 : x
  2. Step 2: Convert to fraction form
    18,543.58/25,590.09 = 10,588.30/x
  3. Step 3: Cross multiply
    18,543.58x = 25,590.09 × 10,588.30
  4. Step 4: Simplify right side
    18,543.58x = 270,955,549.95
  5. Step 5: Solve for x
    x = 270,955,549.95/18,543.58
  6. Step 6: Final answer
    x = 14,611.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.