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Finding the Fourth Proportional to 62,655.77, 93,990.54 and 18,289.78

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Solution

The fourth proportional to 62,655.77, 93,990.54 and 18,289.78 is: 27,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,655.77 : 93,990.54 = 18,289.78 : x
  2. Step 2: Convert to fraction form
    62,655.77/93,990.54 = 18,289.78/x
  3. Step 3: Cross multiply
    62,655.77x = 93,990.54 × 18,289.78
  4. Step 4: Simplify right side
    62,655.77x = 1,719,066,298.68
  5. Step 5: Solve for x
    x = 1,719,066,298.68/62,655.77
  6. Step 6: Final answer
    x = 27,436.68

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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.