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Finding the Fourth Proportional to 62,655.50, 93,983.26 and 21,102.50

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Solution

The fourth proportional to 62,655.50, 93,983.26 and 21,102.50 is: 31,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,655.50 : 93,983.26 = 21,102.50 : x
  2. Step 2: Convert to fraction form
    62,655.50/93,983.26 = 21,102.50/x
  3. Step 3: Cross multiply
    62,655.50x = 93,983.26 × 21,102.50
  4. Step 4: Simplify right side
    62,655.50x = 1,983,281,744.15
  5. Step 5: Solve for x
    x = 1,983,281,744.15/62,655.50
  6. Step 6: Final answer
    x = 31,653.75

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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.