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Finding the Fourth Proportional to 52,911.36, 79,367.48 and 13,468.40

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Solution

The fourth proportional to 52,911.36, 79,367.48 and 13,468.40 is: 20,202.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,911.36 : 79,367.48 = 13,468.40 : x
  2. Step 2: Convert to fraction form
    52,911.36/79,367.48 = 13,468.40/x
  3. Step 3: Cross multiply
    52,911.36x = 79,367.48 × 13,468.40
  4. Step 4: Simplify right side
    52,911.36x = 1,068,952,967.63
  5. Step 5: Solve for x
    x = 1,068,952,967.63/52,911.36
  6. Step 6: Final answer
    x = 20,202.71

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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.