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Finding the Fourth Proportional to 29,507.68, 44,259.90 and 11,979.28

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Solution

The fourth proportional to 29,507.68, 44,259.90 and 11,979.28 is: 17,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,507.68 : 44,259.90 = 11,979.28 : x
  2. Step 2: Convert to fraction form
    29,507.68/44,259.90 = 11,979.28/x
  3. Step 3: Cross multiply
    29,507.68x = 44,259.90 × 11,979.28
  4. Step 4: Simplify right side
    29,507.68x = 530,201,734.87
  5. Step 5: Solve for x
    x = 530,201,734.87/29,507.68
  6. Step 6: Final answer
    x = 17,968.26

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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.