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Finding the Fourth Proportional to 63,699.70, 95,551.74 and 28,639.48

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Solution

The fourth proportional to 63,699.70, 95,551.74 and 28,639.48 is: 42,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,699.70 : 95,551.74 = 28,639.48 : x
  2. Step 2: Convert to fraction form
    63,699.70/95,551.74 = 28,639.48/x
  3. Step 3: Cross multiply
    63,699.70x = 95,551.74 × 28,639.48
  4. Step 4: Simplify right side
    63,699.70x = 2,736,552,146.70
  5. Step 5: Solve for x
    x = 2,736,552,146.70/63,699.70
  6. Step 6: Final answer
    x = 42,960.20

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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.