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Finding the Fourth Proportional to 2,605.39, 3,595.19 and 1,543.57

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Solution

The fourth proportional to 2,605.39, 3,595.19 and 1,543.57 is: 2,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.39 : 3,595.19 = 1,543.57 : x
  2. Step 2: Convert to fraction form
    2,605.39/3,595.19 = 1,543.57/x
  3. Step 3: Cross multiply
    2,605.39x = 3,595.19 × 1,543.57
  4. Step 4: Simplify right side
    2,605.39x = 5,549,410.72
  5. Step 5: Solve for x
    x = 5,549,410.72/2,605.39
  6. Step 6: Final answer
    x = 2,129.98

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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.