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Finding the Fourth Proportional to 26,649.13, 39,966.73 and 7,924.12

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Solution

The fourth proportional to 26,649.13, 39,966.73 and 7,924.12 is: 11,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649.13 : 39,966.73 = 7,924.12 : x
  2. Step 2: Convert to fraction form
    26,649.13/39,966.73 = 7,924.12/x
  3. Step 3: Cross multiply
    26,649.13x = 39,966.73 × 7,924.12
  4. Step 4: Simplify right side
    26,649.13x = 316,701,164.53
  5. Step 5: Solve for x
    x = 316,701,164.53/26,649.13
  6. Step 6: Final answer
    x = 11,884.11

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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.