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Finding the Fourth Proportional to 47,112.60, 70,668.90 and 15,522.60

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Solution

The fourth proportional to 47,112.60, 70,668.90 and 15,522.60 is: 23,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,112.60 : 70,668.90 = 15,522.60 : x
  2. Step 2: Convert to fraction form
    47,112.60/70,668.90 = 15,522.60/x
  3. Step 3: Cross multiply
    47,112.60x = 70,668.90 × 15,522.60
  4. Step 4: Simplify right side
    47,112.60x = 1,096,965,067.14
  5. Step 5: Solve for x
    x = 1,096,965,067.14/47,112.60
  6. Step 6: Final answer
    x = 23,283.90

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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.