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Finding the Fourth Proportional to 76,028.40, 114,031.80 and 26,110.80

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Solution

The fourth proportional to 76,028.40, 114,031.80 and 26,110.80 is: 39,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,028.40 : 114,031.80 = 26,110.80 : x
  2. Step 2: Convert to fraction form
    76,028.40/114,031.80 = 26,110.80/x
  3. Step 3: Cross multiply
    76,028.40x = 114,031.80 × 26,110.80
  4. Step 4: Simplify right side
    76,028.40x = 2,977,461,523.44
  5. Step 5: Solve for x
    x = 2,977,461,523.44/76,028.40
  6. Step 6: Final answer
    x = 39,162.49

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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.