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Finding the Fourth Proportional to 47,907.20, 66,110.64 and 26,685.20

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Solution

The fourth proportional to 47,907.20, 66,110.64 and 26,685.20 is: 36,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,907.20 : 66,110.64 = 26,685.20 : x
  2. Step 2: Convert to fraction form
    47,907.20/66,110.64 = 26,685.20/x
  3. Step 3: Cross multiply
    47,907.20x = 66,110.64 × 26,685.20
  4. Step 4: Simplify right side
    47,907.20x = 1,764,175,650.53
  5. Step 5: Solve for x
    x = 1,764,175,650.53/47,907.20
  6. Step 6: Final answer
    x = 36,824.85

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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.