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Finding the Fourth Proportional to 50,963.60, 76,445.40 and 43,090.40

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Solution

The fourth proportional to 50,963.60, 76,445.40 and 43,090.40 is: 64,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,963.60 : 76,445.40 = 43,090.40 : x
  2. Step 2: Convert to fraction form
    50,963.60/76,445.40 = 43,090.40/x
  3. Step 3: Cross multiply
    50,963.60x = 76,445.40 × 43,090.40
  4. Step 4: Simplify right side
    50,963.60x = 3,294,062,864.16
  5. Step 5: Solve for x
    x = 3,294,062,864.16/50,963.60
  6. Step 6: Final answer
    x = 64,635.60

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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.