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Finding the Fourth Proportional to 62,580.71, 93,851.22 and 20,451.26

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Solution

The fourth proportional to 62,580.71, 93,851.22 and 20,451.26 is: 30,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,580.71 : 93,851.22 = 20,451.26 : x
  2. Step 2: Convert to fraction form
    62,580.71/93,851.22 = 20,451.26/x
  3. Step 3: Cross multiply
    62,580.71x = 93,851.22 × 20,451.26
  4. Step 4: Simplify right side
    62,580.71x = 1,919,375,701.54
  5. Step 5: Solve for x
    x = 1,919,375,701.54/62,580.71
  6. Step 6: Final answer
    x = 30,670.40

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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.