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Finding the Fourth Proportional to 62,208.90, 93,313.35 and 20,655.90

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Solution

The fourth proportional to 62,208.90, 93,313.35 and 20,655.90 is: 30,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,208.90 : 93,313.35 = 20,655.90 : x
  2. Step 2: Convert to fraction form
    62,208.90/93,313.35 = 20,655.90/x
  3. Step 3: Cross multiply
    62,208.90x = 93,313.35 × 20,655.90
  4. Step 4: Simplify right side
    62,208.90x = 1,927,471,226.27
  5. Step 5: Solve for x
    x = 1,927,471,226.27/62,208.90
  6. Step 6: Final answer
    x = 30,983.85

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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.