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Finding the Fourth Proportional to 18,543.80, 27,818.40 and 6,064.40

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Solution

The fourth proportional to 18,543.80, 27,818.40 and 6,064.40 is: 9,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.80 : 27,818.40 = 6,064.40 : x
  2. Step 2: Convert to fraction form
    18,543.80/27,818.40 = 6,064.40/x
  3. Step 3: Cross multiply
    18,543.80x = 27,818.40 × 6,064.40
  4. Step 4: Simplify right side
    18,543.80x = 168,701,904.96
  5. Step 5: Solve for x
    x = 168,701,904.96/18,543.80
  6. Step 6: Final answer
    x = 9,097.48

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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.