Home / 42,794.64-64,191.78-11,629.80

Finding the Fourth Proportional to 42,794.64, 64,191.78 and 11,629.80

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Solution

The fourth proportional to 42,794.64, 64,191.78 and 11,629.80 is: 17,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,794.64 : 64,191.78 = 11,629.80 : x
  2. Step 2: Convert to fraction form
    42,794.64/64,191.78 = 11,629.80/x
  3. Step 3: Cross multiply
    42,794.64x = 64,191.78 × 11,629.80
  4. Step 4: Simplify right side
    42,794.64x = 746,537,563.04
  5. Step 5: Solve for x
    x = 746,537,563.04/42,794.64
  6. Step 6: Final answer
    x = 17,444.65

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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.