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Finding the Fourth Proportional to 55,861.86, 83,680.60 and 25,834.01

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Solution

The fourth proportional to 55,861.86, 83,680.60 and 25,834.01 is: 38,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,861.86 : 83,680.60 = 25,834.01 : x
  2. Step 2: Convert to fraction form
    55,861.86/83,680.60 = 25,834.01/x
  3. Step 3: Cross multiply
    55,861.86x = 83,680.60 × 25,834.01
  4. Step 4: Simplify right side
    55,861.86x = 2,161,805,457.21
  5. Step 5: Solve for x
    x = 2,161,805,457.21/55,861.86
  6. Step 6: Final answer
    x = 38,699.13

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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.