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Finding the Fourth Proportional to 48,698.40, 72,932.40 and 33,031.20

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Solution

The fourth proportional to 48,698.40, 72,932.40 and 33,031.20 is: 49,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,698.40 : 72,932.40 = 33,031.20 : x
  2. Step 2: Convert to fraction form
    48,698.40/72,932.40 = 33,031.20/x
  3. Step 3: Cross multiply
    48,698.40x = 72,932.40 × 33,031.20
  4. Step 4: Simplify right side
    48,698.40x = 2,409,044,690.88
  5. Step 5: Solve for x
    x = 2,409,044,690.88/48,698.40
  6. Step 6: Final answer
    x = 49,468.66

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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.