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Finding the Fourth Proportional to 56,957.69, 85,420.40 and 23,636.54

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Solution

The fourth proportional to 56,957.69, 85,420.40 and 23,636.54 is: 35,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,957.69 : 85,420.40 = 23,636.54 : x
  2. Step 2: Convert to fraction form
    56,957.69/85,420.40 = 23,636.54/x
  3. Step 3: Cross multiply
    56,957.69x = 85,420.40 × 23,636.54
  4. Step 4: Simplify right side
    56,957.69x = 2,019,042,156.13
  5. Step 5: Solve for x
    x = 2,019,042,156.13/56,957.69
  6. Step 6: Final answer
    x = 35,448.11

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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.