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Finding the Fourth Proportional to 35,454.61, 53,181.92 and 9,161.47

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Solution

The fourth proportional to 35,454.61, 53,181.92 and 9,161.47 is: 13,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,454.61 : 53,181.92 = 9,161.47 : x
  2. Step 2: Convert to fraction form
    35,454.61/53,181.92 = 9,161.47/x
  3. Step 3: Cross multiply
    35,454.61x = 53,181.92 × 9,161.47
  4. Step 4: Simplify right side
    35,454.61x = 487,224,564.62
  5. Step 5: Solve for x
    x = 487,224,564.62/35,454.61
  6. Step 6: Final answer
    x = 13,742.21

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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.