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Finding the Fourth Proportional to 34,473.60, 47,579.76 and 20,325.60

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Solution

The fourth proportional to 34,473.60, 47,579.76 and 20,325.60 is: 28,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,473.60 : 47,579.76 = 20,325.60 : x
  2. Step 2: Convert to fraction form
    34,473.60/47,579.76 = 20,325.60/x
  3. Step 3: Cross multiply
    34,473.60x = 47,579.76 × 20,325.60
  4. Step 4: Simplify right side
    34,473.60x = 967,087,169.86
  5. Step 5: Solve for x
    x = 967,087,169.86/34,473.60
  6. Step 6: Final answer
    x = 28,052.98

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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.