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Finding the Fourth Proportional to 43,916.34, 65,876.34 and 12,751.59

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Solution

The fourth proportional to 43,916.34, 65,876.34 and 12,751.59 is: 19,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,916.34 : 65,876.34 = 12,751.59 : x
  2. Step 2: Convert to fraction form
    43,916.34/65,876.34 = 12,751.59/x
  3. Step 3: Cross multiply
    43,916.34x = 65,876.34 × 12,751.59
  4. Step 4: Simplify right side
    43,916.34x = 840,028,301.51
  5. Step 5: Solve for x
    x = 840,028,301.51/43,916.34
  6. Step 6: Final answer
    x = 19,127.92

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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.