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Finding the Fourth Proportional to 17,603.15, 24,291.90 and 9,645.30

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Solution

The fourth proportional to 17,603.15, 24,291.90 and 9,645.30 is: 13,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.15 : 24,291.90 = 9,645.30 : x
  2. Step 2: Convert to fraction form
    17,603.15/24,291.90 = 9,645.30/x
  3. Step 3: Cross multiply
    17,603.15x = 24,291.90 × 9,645.30
  4. Step 4: Simplify right side
    17,603.15x = 234,302,663.07
  5. Step 5: Solve for x
    x = 234,302,663.07/17,603.15
  6. Step 6: Final answer
    x = 13,310.27

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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.