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Finding the Fourth Proportional to 52,643.21, 72,652.62 and 28,773.47

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Solution

The fourth proportional to 52,643.21, 72,652.62 and 28,773.47 is: 39,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,643.21 : 72,652.62 = 28,773.47 : x
  2. Step 2: Convert to fraction form
    52,643.21/72,652.62 = 28,773.47/x
  3. Step 3: Cross multiply
    52,643.21x = 72,652.62 × 28,773.47
  4. Step 4: Simplify right side
    52,643.21x = 2,090,467,618.73
  5. Step 5: Solve for x
    x = 2,090,467,618.73/52,643.21
  6. Step 6: Final answer
    x = 39,710.11

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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.