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Finding the Fourth Proportional to 67,655.66, 101,495.94 and 28,216.15

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Solution

The fourth proportional to 67,655.66, 101,495.94 and 28,216.15 is: 42,329.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,655.66 : 101,495.94 = 28,216.15 : x
  2. Step 2: Convert to fraction form
    67,655.66/101,495.94 = 28,216.15/x
  3. Step 3: Cross multiply
    67,655.66x = 101,495.94 × 28,216.15
  4. Step 4: Simplify right side
    67,655.66x = 2,863,824,307.88
  5. Step 5: Solve for x
    x = 2,863,824,307.88/67,655.66
  6. Step 6: Final answer
    x = 42,329.42

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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.