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Finding the Fourth Proportional to 61,206.48, 91,775.16 and 25,638.48

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Solution

The fourth proportional to 61,206.48, 91,775.16 and 25,638.48 is: 38,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,206.48 : 91,775.16 = 25,638.48 : x
  2. Step 2: Convert to fraction form
    61,206.48/91,775.16 = 25,638.48/x
  3. Step 3: Cross multiply
    61,206.48x = 91,775.16 × 25,638.48
  4. Step 4: Simplify right side
    61,206.48x = 2,352,975,604.16
  5. Step 5: Solve for x
    x = 2,352,975,604.16/61,206.48
  6. Step 6: Final answer
    x = 38,443.24

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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.