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Finding the Fourth Proportional to 35,805.86, 53,723.96 and 19,161.57

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Solution

The fourth proportional to 35,805.86, 53,723.96 and 19,161.57 is: 28,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.86 : 53,723.96 = 19,161.57 : x
  2. Step 2: Convert to fraction form
    35,805.86/53,723.96 = 19,161.57/x
  3. Step 3: Cross multiply
    35,805.86x = 53,723.96 × 19,161.57
  4. Step 4: Simplify right side
    35,805.86x = 1,029,435,324.41
  5. Step 5: Solve for x
    x = 1,029,435,324.41/35,805.86
  6. Step 6: Final answer
    x = 28,750.47

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1.5x scale

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.