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Finding the Fourth Proportional to 53,975.60, 80,963.40 and 48,289.40

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Solution

The fourth proportional to 53,975.60, 80,963.40 and 48,289.40 is: 72,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,975.60 : 80,963.40 = 48,289.40 : x
  2. Step 2: Convert to fraction form
    53,975.60/80,963.40 = 48,289.40/x
  3. Step 3: Cross multiply
    53,975.60x = 80,963.40 × 48,289.40
  4. Step 4: Simplify right side
    53,975.60x = 3,909,674,007.96
  5. Step 5: Solve for x
    x = 3,909,674,007.96/53,975.60
  6. Step 6: Final answer
    x = 72,434.10

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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.