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Finding the Fourth Proportional to 45,762.75, 63,133.92 and 28,761.51

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Solution

The fourth proportional to 45,762.75, 63,133.92 and 28,761.51 is: 39,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,762.75 : 63,133.92 = 28,761.51 : x
  2. Step 2: Convert to fraction form
    45,762.75/63,133.92 = 28,761.51/x
  3. Step 3: Cross multiply
    45,762.75x = 63,133.92 × 28,761.51
  4. Step 4: Simplify right side
    45,762.75x = 1,815,826,871.42
  5. Step 5: Solve for x
    x = 1,815,826,871.42/45,762.75
  6. Step 6: Final answer
    x = 39,679.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.