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Finding the Fourth Proportional to 52,991.88, 79,490.68 and 13,549.34

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Solution

The fourth proportional to 52,991.88, 79,490.68 and 13,549.34 is: 20,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,991.88 : 79,490.68 = 13,549.34 : x
  2. Step 2: Convert to fraction form
    52,991.88/79,490.68 = 13,549.34/x
  3. Step 3: Cross multiply
    52,991.88x = 79,490.68 × 13,549.34
  4. Step 4: Simplify right side
    52,991.88x = 1,077,046,250.15
  5. Step 5: Solve for x
    x = 1,077,046,250.15/52,991.88
  6. Step 6: Final answer
    x = 20,324.74

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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.