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Finding the Fourth Proportional to 52,076.65, 71,865.72 and 28,203.31

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Solution

The fourth proportional to 52,076.65, 71,865.72 and 28,203.31 is: 38,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,076.65 : 71,865.72 = 28,203.31 : x
  2. Step 2: Convert to fraction form
    52,076.65/71,865.72 = 28,203.31/x
  3. Step 3: Cross multiply
    52,076.65x = 71,865.72 × 28,203.31
  4. Step 4: Simplify right side
    52,076.65x = 2,026,851,179.53
  5. Step 5: Solve for x
    x = 2,026,851,179.53/52,076.65
  6. Step 6: Final answer
    x = 38,920.54

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1.5x scale

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.