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Finding the Fourth Proportional to 47,805.70, 71,708.55 and 36,768.10

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Solution

The fourth proportional to 47,805.70, 71,708.55 and 36,768.10 is: 55,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,805.70 : 71,708.55 = 36,768.10 : x
  2. Step 2: Convert to fraction form
    47,805.70/71,708.55 = 36,768.10/x
  3. Step 3: Cross multiply
    47,805.70x = 71,708.55 × 36,768.10
  4. Step 4: Simplify right side
    47,805.70x = 2,636,587,137.26
  5. Step 5: Solve for x
    x = 2,636,587,137.26/47,805.70
  6. Step 6: Final answer
    x = 55,152.15

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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.