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Finding the Fourth Proportional to 62,847.17, 94,250.74 and 20,719.40

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Solution

The fourth proportional to 62,847.17, 94,250.74 and 20,719.40 is: 31,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,847.17 : 94,250.74 = 20,719.40 : x
  2. Step 2: Convert to fraction form
    62,847.17/94,250.74 = 20,719.40/x
  3. Step 3: Cross multiply
    62,847.17x = 94,250.74 × 20,719.40
  4. Step 4: Simplify right side
    62,847.17x = 1,952,818,207.51
  5. Step 5: Solve for x
    x = 1,952,818,207.51/62,847.17
  6. Step 6: Final answer
    x = 31,072.49

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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.