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Finding the Fourth Proportional to 56,373.64, 77,760.42 and 36,256.72

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Solution

The fourth proportional to 56,373.64, 77,760.42 and 36,256.72 is: 50,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,373.64 : 77,760.42 = 36,256.72 : x
  2. Step 2: Convert to fraction form
    56,373.64/77,760.42 = 36,256.72/x
  3. Step 3: Cross multiply
    56,373.64x = 77,760.42 × 36,256.72
  4. Step 4: Simplify right side
    56,373.64x = 2,819,337,775.02
  5. Step 5: Solve for x
    x = 2,819,337,775.02/56,373.64
  6. Step 6: Final answer
    x = 50,011.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.