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Finding the Fourth Proportional to 61,697.32, 92,422.64 and 28,371.69

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Solution

The fourth proportional to 61,697.32, 92,422.64 and 28,371.69 is: 42,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.32 : 92,422.64 = 28,371.69 : x
  2. Step 2: Convert to fraction form
    61,697.32/92,422.64 = 28,371.69/x
  3. Step 3: Cross multiply
    61,697.32x = 92,422.64 × 28,371.69
  4. Step 4: Simplify right side
    61,697.32x = 2,622,186,561.99
  5. Step 5: Solve for x
    x = 2,622,186,561.99/61,697.32
  6. Step 6: Final answer
    x = 42,500.82

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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.