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Finding the Fourth Proportional to 51,820.52, 77,666.53 and 36,803.69

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Solution

The fourth proportional to 51,820.52, 77,666.53 and 36,803.69 is: 55,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,820.52 : 77,666.53 = 36,803.69 : x
  2. Step 2: Convert to fraction form
    51,820.52/77,666.53 = 36,803.69/x
  3. Step 3: Cross multiply
    51,820.52x = 77,666.53 × 36,803.69
  4. Step 4: Simplify right side
    51,820.52x = 2,858,414,893.50
  5. Step 5: Solve for x
    x = 2,858,414,893.50/51,820.52
  6. Step 6: Final answer
    x = 55,159.90

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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.