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Finding the Fourth Proportional to 52,648.91, 78,961.71 and 15,200.84

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Solution

The fourth proportional to 52,648.91, 78,961.71 and 15,200.84 is: 22,797.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,648.91 : 78,961.71 = 15,200.84 : x
  2. Step 2: Convert to fraction form
    52,648.91/78,961.71 = 15,200.84/x
  3. Step 3: Cross multiply
    52,648.91x = 78,961.71 × 15,200.84
  4. Step 4: Simplify right side
    52,648.91x = 1,200,284,319.84
  5. Step 5: Solve for x
    x = 1,200,284,319.84/52,648.91
  6. Step 6: Final answer
    x = 22,797.89

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1.5x scale

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.