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Finding the Fourth Proportional to 40,656.60, 60,984.90 and 28,846.80

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Solution

The fourth proportional to 40,656.60, 60,984.90 and 28,846.80 is: 43,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,656.60 : 60,984.90 = 28,846.80 : x
  2. Step 2: Convert to fraction form
    40,656.60/60,984.90 = 28,846.80/x
  3. Step 3: Cross multiply
    40,656.60x = 60,984.90 × 28,846.80
  4. Step 4: Simplify right side
    40,656.60x = 1,759,219,213.32
  5. Step 5: Solve for x
    x = 1,759,219,213.32/40,656.60
  6. Step 6: Final answer
    x = 43,270.20

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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.