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Finding the Fourth Proportional to 51,268.40, 76,902.60 and 47,963.60

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Solution

The fourth proportional to 51,268.40, 76,902.60 and 47,963.60 is: 71,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.40 : 76,902.60 = 47,963.60 : x
  2. Step 2: Convert to fraction form
    51,268.40/76,902.60 = 47,963.60/x
  3. Step 3: Cross multiply
    51,268.40x = 76,902.60 × 47,963.60
  4. Step 4: Simplify right side
    51,268.40x = 3,688,525,545.36
  5. Step 5: Solve for x
    x = 3,688,525,545.36/51,268.40
  6. Step 6: Final answer
    x = 71,945.40

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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.