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Finding the Fourth Proportional to 52,963.54, 79,445.21 and 13,520.64

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Solution

The fourth proportional to 52,963.54, 79,445.21 and 13,520.64 is: 20,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,963.54 : 79,445.21 = 13,520.64 : x
  2. Step 2: Convert to fraction form
    52,963.54/79,445.21 = 13,520.64/x
  3. Step 3: Cross multiply
    52,963.54x = 79,445.21 × 13,520.64
  4. Step 4: Simplify right side
    52,963.54x = 1,074,150,084.13
  5. Step 5: Solve for x
    x = 1,074,150,084.13/52,963.54
  6. Step 6: Final answer
    x = 20,280.93

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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.