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Finding the Fourth Proportional to 60,837.84, 91,256.98 and 18,717.64

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Solution

The fourth proportional to 60,837.84, 91,256.98 and 18,717.64 is: 28,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,837.84 : 91,256.98 = 18,717.64 : x
  2. Step 2: Convert to fraction form
    60,837.84/91,256.98 = 18,717.64/x
  3. Step 3: Cross multiply
    60,837.84x = 91,256.98 × 18,717.64
  4. Step 4: Simplify right side
    60,837.84x = 1,708,115,299.13
  5. Step 5: Solve for x
    x = 1,708,115,299.13/60,837.84
  6. Step 6: Final answer
    x = 28,076.53

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Why These Related Problems?

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