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Finding the Fourth Proportional to 28,996.68, 43,502.73 and 9,275.61

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Solution

The fourth proportional to 28,996.68, 43,502.73 and 9,275.61 is: 13,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.68 : 43,502.73 = 9,275.61 : x
  2. Step 2: Convert to fraction form
    28,996.68/43,502.73 = 9,275.61/x
  3. Step 3: Cross multiply
    28,996.68x = 43,502.73 × 9,275.61
  4. Step 4: Simplify right side
    28,996.68x = 403,514,357.42
  5. Step 5: Solve for x
    x = 403,514,357.42/28,996.68
  6. Step 6: Final answer
    x = 13,915.88

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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.