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Finding the Fourth Proportional to 43,916.86, 65,877.11 and 12,752.11

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Solution

The fourth proportional to 43,916.86, 65,877.11 and 12,752.11 is: 19,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,916.86 : 65,877.11 = 12,752.11 : x
  2. Step 2: Convert to fraction form
    43,916.86/65,877.11 = 12,752.11/x
  3. Step 3: Cross multiply
    43,916.86x = 65,877.11 × 12,752.11
  4. Step 4: Simplify right side
    43,916.86x = 840,072,153.20
  5. Step 5: Solve for x
    x = 840,072,153.20/43,916.86
  6. Step 6: Final answer
    x = 19,128.69

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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.