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Finding the Fourth Proportional to 47,203.44, 70,808.80 and 12,143.44

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Solution

The fourth proportional to 47,203.44, 70,808.80 and 12,143.44 is: 18,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,203.44 : 70,808.80 = 12,143.44 : x
  2. Step 2: Convert to fraction form
    47,203.44/70,808.80 = 12,143.44/x
  3. Step 3: Cross multiply
    47,203.44x = 70,808.80 × 12,143.44
  4. Step 4: Simplify right side
    47,203.44x = 859,862,414.27
  5. Step 5: Solve for x
    x = 859,862,414.27/47,203.44
  6. Step 6: Final answer
    x = 18,216.10

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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.