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Finding the Fourth Proportional to 43,224.40, 64,810.68 and 16,897.78

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Solution

The fourth proportional to 43,224.40, 64,810.68 and 16,897.78 is: 25,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,224.40 : 64,810.68 = 16,897.78 : x
  2. Step 2: Convert to fraction form
    43,224.40/64,810.68 = 16,897.78/x
  3. Step 3: Cross multiply
    43,224.40x = 64,810.68 × 16,897.78
  4. Step 4: Simplify right side
    43,224.40x = 1,095,156,612.29
  5. Step 5: Solve for x
    x = 1,095,156,612.29/43,224.40
  6. Step 6: Final answer
    x = 25,336.54

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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.