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Finding the Fourth Proportional to 52,749.80, 79,127.25 and 17,211.05

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Solution

The fourth proportional to 52,749.80, 79,127.25 and 17,211.05 is: 25,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,749.80 : 79,127.25 = 17,211.05 : x
  2. Step 2: Convert to fraction form
    52,749.80/79,127.25 = 17,211.05/x
  3. Step 3: Cross multiply
    52,749.80x = 79,127.25 × 17,211.05
  4. Step 4: Simplify right side
    52,749.80x = 1,361,863,056.11
  5. Step 5: Solve for x
    x = 1,361,863,056.11/52,749.80
  6. Step 6: Final answer
    x = 25,817.41

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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.