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Finding the Fourth Proportional to 17,699.21, 24,421.80 and 10,625.78

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Solution

The fourth proportional to 17,699.21, 24,421.80 and 10,625.78 is: 14,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,699.21 : 24,421.80 = 10,625.78 : x
  2. Step 2: Convert to fraction form
    17,699.21/24,421.80 = 10,625.78/x
  3. Step 3: Cross multiply
    17,699.21x = 24,421.80 × 10,625.78
  4. Step 4: Simplify right side
    17,699.21x = 259,500,774.91
  5. Step 5: Solve for x
    x = 259,500,774.91/17,699.21
  6. Step 6: Final answer
    x = 14,661.72

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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.