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Finding the Fourth Proportional to 21,575.87, 29,773.58 and 12,016.52

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Solution

The fourth proportional to 21,575.87, 29,773.58 and 12,016.52 is: 16,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.87 : 29,773.58 = 12,016.52 : x
  2. Step 2: Convert to fraction form
    21,575.87/29,773.58 = 12,016.52/x
  3. Step 3: Cross multiply
    21,575.87x = 29,773.58 × 12,016.52
  4. Step 4: Simplify right side
    21,575.87x = 357,774,722.24
  5. Step 5: Solve for x
    x = 357,774,722.24/21,575.87
  6. Step 6: Final answer
    x = 16,582.17

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