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Finding the Fourth Proportional to 27,581.60, 41,372.40 and 25,421.60

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Solution

The fourth proportional to 27,581.60, 41,372.40 and 25,421.60 is: 38,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,581.60 : 41,372.40 = 25,421.60 : x
  2. Step 2: Convert to fraction form
    27,581.60/41,372.40 = 25,421.60/x
  3. Step 3: Cross multiply
    27,581.60x = 41,372.40 × 25,421.60
  4. Step 4: Simplify right side
    27,581.60x = 1,051,752,603.84
  5. Step 5: Solve for x
    x = 1,051,752,603.84/27,581.60
  6. Step 6: Final answer
    x = 38,132.40

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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.