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Finding the Fourth Proportional to 17,661.83, 24,349.76 and 15,133.11

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Solution

The fourth proportional to 17,661.83, 24,349.76 and 15,133.11 is: 20,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.83 : 24,349.76 = 15,133.11 : x
  2. Step 2: Convert to fraction form
    17,661.83/24,349.76 = 15,133.11/x
  3. Step 3: Cross multiply
    17,661.83x = 24,349.76 × 15,133.11
  4. Step 4: Simplify right side
    17,661.83x = 368,487,520.89
  5. Step 5: Solve for x
    x = 368,487,520.89/17,661.83
  6. Step 6: Final answer
    x = 20,863.50

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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.