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Finding the Fourth Proportional to 17,785.15, 24,543.50 and 9,827.31

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Solution

The fourth proportional to 17,785.15, 24,543.50 and 9,827.31 is: 13,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,785.15 : 24,543.50 = 9,827.31 : x
  2. Step 2: Convert to fraction form
    17,785.15/24,543.50 = 9,827.31/x
  3. Step 3: Cross multiply
    17,785.15x = 24,543.50 × 9,827.31
  4. Step 4: Simplify right side
    17,785.15x = 241,196,497.09
  5. Step 5: Solve for x
    x = 241,196,497.09/17,785.15
  6. Step 6: Final answer
    x = 13,561.68

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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.