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Finding the Fourth Proportional to 53,972.64, 80,968.68 and 25,868.88

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Solution

The fourth proportional to 53,972.64, 80,968.68 and 25,868.88 is: 38,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,972.64 : 80,968.68 = 25,868.88 : x
  2. Step 2: Convert to fraction form
    53,972.64/80,968.68 = 25,868.88/x
  3. Step 3: Cross multiply
    53,972.64x = 80,968.68 × 25,868.88
  4. Step 4: Simplify right side
    53,972.64x = 2,094,569,066.68
  5. Step 5: Solve for x
    x = 2,094,569,066.68/53,972.64
  6. Step 6: Final answer
    x = 38,807.98

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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.