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Finding the Fourth Proportional to 52,615.20, 78,922.80 and 32,954.40

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Solution

The fourth proportional to 52,615.20, 78,922.80 and 32,954.40 is: 49,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,615.20 : 78,922.80 = 32,954.40 : x
  2. Step 2: Convert to fraction form
    52,615.20/78,922.80 = 32,954.40/x
  3. Step 3: Cross multiply
    52,615.20x = 78,922.80 × 32,954.40
  4. Step 4: Simplify right side
    52,615.20x = 2,600,853,520.32
  5. Step 5: Solve for x
    x = 2,600,853,520.32/52,615.20
  6. Step 6: Final answer
    x = 49,431.60

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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.