Home / 66,296.49-99,429.54-18,910.68

Finding the Fourth Proportional to 66,296.49, 99,429.54 and 18,910.68

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Solution

The fourth proportional to 66,296.49, 99,429.54 and 18,910.68 is: 28,361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,296.49 : 99,429.54 = 18,910.68 : x
  2. Step 2: Convert to fraction form
    66,296.49/99,429.54 = 18,910.68/x
  3. Step 3: Cross multiply
    66,296.49x = 99,429.54 × 18,910.68
  4. Step 4: Simplify right side
    66,296.49x = 1,880,280,213.49
  5. Step 5: Solve for x
    x = 1,880,280,213.49/66,296.49
  6. Step 6: Final answer
    x = 28,361.69

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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.