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Finding the Fourth Proportional to 45,740.40, 68,615.64 and 14,568.48

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Solution

The fourth proportional to 45,740.40, 68,615.64 and 14,568.48 is: 21,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,740.40 : 68,615.64 = 14,568.48 : x
  2. Step 2: Convert to fraction form
    45,740.40/68,615.64 = 14,568.48/x
  3. Step 3: Cross multiply
    45,740.40x = 68,615.64 × 14,568.48
  4. Step 4: Simplify right side
    45,740.40x = 999,625,579.03
  5. Step 5: Solve for x
    x = 999,625,579.03/45,740.40
  6. Step 6: Final answer
    x = 21,854.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.