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Finding the Fourth Proportional to 51,048.08, 70,452.68 and 28,692.08

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Solution

The fourth proportional to 51,048.08, 70,452.68 and 28,692.08 is: 39,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,048.08 : 70,452.68 = 28,692.08 : x
  2. Step 2: Convert to fraction form
    51,048.08/70,452.68 = 28,692.08/x
  3. Step 3: Cross multiply
    51,048.08x = 70,452.68 × 28,692.08
  4. Step 4: Simplify right side
    51,048.08x = 2,021,433,930.77
  5. Step 5: Solve for x
    x = 2,021,433,930.77/51,048.08
  6. Step 6: Final answer
    x = 39,598.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.