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Finding the Fourth Proportional to 15,569.34, 21,485.70 and 8,496.18

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Solution

The fourth proportional to 15,569.34, 21,485.70 and 8,496.18 is: 11,724.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.34 : 21,485.70 = 8,496.18 : x
  2. Step 2: Convert to fraction form
    15,569.34/21,485.70 = 8,496.18/x
  3. Step 3: Cross multiply
    15,569.34x = 21,485.70 × 8,496.18
  4. Step 4: Simplify right side
    15,569.34x = 182,546,374.63
  5. Step 5: Solve for x
    x = 182,546,374.63/15,569.34
  6. Step 6: Final answer
    x = 11,724.73

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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.