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Finding the Fourth Proportional to 52,630.72, 72,629.08 and 28,757.52

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Solution

The fourth proportional to 52,630.72, 72,629.08 and 28,757.52 is: 39,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,630.72 : 72,629.08 = 28,757.52 : x
  2. Step 2: Convert to fraction form
    52,630.72/72,629.08 = 28,757.52/x
  3. Step 3: Cross multiply
    52,630.72x = 72,629.08 × 28,757.52
  4. Step 4: Simplify right side
    52,630.72x = 2,088,632,220.68
  5. Step 5: Solve for x
    x = 2,088,632,220.68/52,630.72
  6. Step 6: Final answer
    x = 39,684.66

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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.