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Finding the Fourth Proportional to 28,984.49, 43,473.99 and 9,259.57

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Solution

The fourth proportional to 28,984.49, 43,473.99 and 9,259.57 is: 13,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.49 : 43,473.99 = 9,259.57 : x
  2. Step 2: Convert to fraction form
    28,984.49/43,473.99 = 9,259.57/x
  3. Step 3: Cross multiply
    28,984.49x = 43,473.99 × 9,259.57
  4. Step 4: Simplify right side
    28,984.49x = 402,550,236.21
  5. Step 5: Solve for x
    x = 402,550,236.21/28,984.49
  6. Step 6: Final answer
    x = 13,888.47

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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.