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Finding the Fourth Proportional to 53,378.52, 80,079.12 and 15,941.52

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Solution

The fourth proportional to 53,378.52, 80,079.12 and 15,941.52 is: 23,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,378.52 : 80,079.12 = 15,941.52 : x
  2. Step 2: Convert to fraction form
    53,378.52/80,079.12 = 15,941.52/x
  3. Step 3: Cross multiply
    53,378.52x = 80,079.12 × 15,941.52
  4. Step 4: Simplify right side
    53,378.52x = 1,276,582,893.06
  5. Step 5: Solve for x
    x = 1,276,582,893.06/53,378.52
  6. Step 6: Final answer
    x = 23,915.67

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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.