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Finding the Fourth Proportional to 47,103.90, 70,664.88 and 15,523.08

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Solution

The fourth proportional to 47,103.90, 70,664.88 and 15,523.08 is: 23,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,103.90 : 70,664.88 = 15,523.08 : x
  2. Step 2: Convert to fraction form
    47,103.90/70,664.88 = 15,523.08/x
  3. Step 3: Cross multiply
    47,103.90x = 70,664.88 × 15,523.08
  4. Step 4: Simplify right side
    47,103.90x = 1,096,936,585.43
  5. Step 5: Solve for x
    x = 1,096,936,585.43/47,103.90
  6. Step 6: Final answer
    x = 23,287.60

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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.