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Finding the Fourth Proportional to 52,498.80, 78,748.20 and 51,634.80

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Solution

The fourth proportional to 52,498.80, 78,748.20 and 51,634.80 is: 77,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,498.80 : 78,748.20 = 51,634.80 : x
  2. Step 2: Convert to fraction form
    52,498.80/78,748.20 = 51,634.80/x
  3. Step 3: Cross multiply
    52,498.80x = 78,748.20 × 51,634.80
  4. Step 4: Simplify right side
    52,498.80x = 4,066,147,557.36
  5. Step 5: Solve for x
    x = 4,066,147,557.36/52,498.80
  6. Step 6: Final answer
    x = 77,452.20

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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.