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Finding the Fourth Proportional to 17,661.89, 24,349.84 and 15,133.17

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Solution

The fourth proportional to 17,661.89, 24,349.84 and 15,133.17 is: 20,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.89 : 24,349.84 = 15,133.17 : x
  2. Step 2: Convert to fraction form
    17,661.89/24,349.84 = 15,133.17/x
  3. Step 3: Cross multiply
    17,661.89x = 24,349.84 × 15,133.17
  4. Step 4: Simplify right side
    17,661.89x = 368,490,268.19
  5. Step 5: Solve for x
    x = 368,490,268.19/17,661.89
  6. Step 6: Final answer
    x = 20,863.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.