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Finding the Fourth Proportional to 49,994.76, 75,012.84 and 21,900.30

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Solution

The fourth proportional to 49,994.76, 75,012.84 and 21,900.30 is: 32,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,994.76 : 75,012.84 = 21,900.30 : x
  2. Step 2: Convert to fraction form
    49,994.76/75,012.84 = 21,900.30/x
  3. Step 3: Cross multiply
    49,994.76x = 75,012.84 × 21,900.30
  4. Step 4: Simplify right side
    49,994.76x = 1,642,803,699.85
  5. Step 5: Solve for x
    x = 1,642,803,699.85/49,994.76
  6. Step 6: Final answer
    x = 32,859.52

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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.