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Finding the Fourth Proportional to 53,278.44, 79,889.80 and 15,833.32

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Solution

The fourth proportional to 53,278.44, 79,889.80 and 15,833.32 is: 23,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.44 : 79,889.80 = 15,833.32 : x
  2. Step 2: Convert to fraction form
    53,278.44/79,889.80 = 15,833.32/x
  3. Step 3: Cross multiply
    53,278.44x = 79,889.80 × 15,833.32
  4. Step 4: Simplify right side
    53,278.44x = 1,264,920,768.14
  5. Step 5: Solve for x
    x = 1,264,920,768.14/53,278.44
  6. Step 6: Final answer
    x = 23,741.70

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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.