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Finding the Fourth Proportional to 28,941.15, 43,384.01 and 9,206.87

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Solution

The fourth proportional to 28,941.15, 43,384.01 and 9,206.87 is: 13,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.15 : 43,384.01 = 9,206.87 : x
  2. Step 2: Convert to fraction form
    28,941.15/43,384.01 = 9,206.87/x
  3. Step 3: Cross multiply
    28,941.15x = 43,384.01 × 9,206.87
  4. Step 4: Simplify right side
    28,941.15x = 399,430,677.19
  5. Step 5: Solve for x
    x = 399,430,677.19/28,941.15
  6. Step 6: Final answer
    x = 13,801.48

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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.