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Finding the Fourth Proportional to 15,755.52, 23,637.12 and 4,811.52

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Solution

The fourth proportional to 15,755.52, 23,637.12 and 4,811.52 is: 7,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.52 : 23,637.12 = 4,811.52 : x
  2. Step 2: Convert to fraction form
    15,755.52/23,637.12 = 4,811.52/x
  3. Step 3: Cross multiply
    15,755.52x = 23,637.12 × 4,811.52
  4. Step 4: Simplify right side
    15,755.52x = 113,730,475.62
  5. Step 5: Solve for x
    x = 113,730,475.62/15,755.52
  6. Step 6: Final answer
    x = 7,218.45

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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.