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Finding the Fourth Proportional to 28,965.17, 43,445.03 and 9,240.26

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Solution

The fourth proportional to 28,965.17, 43,445.03 and 9,240.26 is: 13,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.17 : 43,445.03 = 9,240.26 : x
  2. Step 2: Convert to fraction form
    28,965.17/43,445.03 = 9,240.26/x
  3. Step 3: Cross multiply
    28,965.17x = 43,445.03 × 9,240.26
  4. Step 4: Simplify right side
    28,965.17x = 401,443,326.71
  5. Step 5: Solve for x
    x = 401,443,326.71/28,965.17
  6. Step 6: Final answer
    x = 13,859.52

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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.