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Finding the Fourth Proportional to 62,541.47, 93,814.93 and 20,421.22

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Solution

The fourth proportional to 62,541.47, 93,814.93 and 20,421.22 is: 30,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,541.47 : 93,814.93 = 20,421.22 : x
  2. Step 2: Convert to fraction form
    62,541.47/93,814.93 = 20,421.22/x
  3. Step 3: Cross multiply
    62,541.47x = 93,814.93 × 20,421.22
  4. Step 4: Simplify right side
    62,541.47x = 1,915,814,855.74
  5. Step 5: Solve for x
    x = 1,915,814,855.74/62,541.47
  6. Step 6: Final answer
    x = 30,632.71

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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.