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Finding the Fourth Proportional to 28,927.19, 43,381.49 and 9,201.14

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Solution

The fourth proportional to 28,927.19, 43,381.49 and 9,201.14 is: 13,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.19 : 43,381.49 = 9,201.14 : x
  2. Step 2: Convert to fraction form
    28,927.19/43,381.49 = 9,201.14/x
  3. Step 3: Cross multiply
    28,927.19x = 43,381.49 × 9,201.14
  4. Step 4: Simplify right side
    28,927.19x = 399,159,162.90
  5. Step 5: Solve for x
    x = 399,159,162.90/28,927.19
  6. Step 6: Final answer
    x = 13,798.75

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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.