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Finding the Fourth Proportional to 17,640.99, 24,303.24 and 13,156.29

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Solution

The fourth proportional to 17,640.99, 24,303.24 and 13,156.29 is: 18,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.99 : 24,303.24 = 13,156.29 : x
  2. Step 2: Convert to fraction form
    17,640.99/24,303.24 = 13,156.29/x
  3. Step 3: Cross multiply
    17,640.99x = 24,303.24 × 13,156.29
  4. Step 4: Simplify right side
    17,640.99x = 319,740,473.38
  5. Step 5: Solve for x
    x = 319,740,473.38/17,640.99
  6. Step 6: Final answer
    x = 18,124.86

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Double scale
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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.