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Finding the Fourth Proportional to 28,983.66, 43,471.86 and 9,260.58

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Solution

The fourth proportional to 28,983.66, 43,471.86 and 9,260.58 is: 13,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.66 : 43,471.86 = 9,260.58 : x
  2. Step 2: Convert to fraction form
    28,983.66/43,471.86 = 9,260.58/x
  3. Step 3: Cross multiply
    28,983.66x = 43,471.86 × 9,260.58
  4. Step 4: Simplify right side
    28,983.66x = 402,574,637.28
  5. Step 5: Solve for x
    x = 402,574,637.28/28,983.66
  6. Step 6: Final answer
    x = 13,889.71

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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.