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Finding the Fourth Proportional to 63,783.05, 95,696.19 and 28,239.46

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Solution

The fourth proportional to 63,783.05, 95,696.19 and 28,239.46 is: 42,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,783.05 : 95,696.19 = 28,239.46 : x
  2. Step 2: Convert to fraction form
    63,783.05/95,696.19 = 28,239.46/x
  3. Step 3: Cross multiply
    63,783.05x = 95,696.19 × 28,239.46
  4. Step 4: Simplify right side
    63,783.05x = 2,702,409,242.70
  5. Step 5: Solve for x
    x = 2,702,409,242.70/63,783.05
  6. Step 6: Final answer
    x = 42,368.77

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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.