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Finding the Fourth Proportional to 40,315.60, 60,473.40 and 32,928.40

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Solution

The fourth proportional to 40,315.60, 60,473.40 and 32,928.40 is: 49,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,315.60 : 60,473.40 = 32,928.40 : x
  2. Step 2: Convert to fraction form
    40,315.60/60,473.40 = 32,928.40/x
  3. Step 3: Cross multiply
    40,315.60x = 60,473.40 × 32,928.40
  4. Step 4: Simplify right side
    40,315.60x = 1,991,292,304.56
  5. Step 5: Solve for x
    x = 1,991,292,304.56/40,315.60
  6. Step 6: Final answer
    x = 49,392.60

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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.