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Finding the Fourth Proportional to 17,420.67, 24,040.90 and 10,702.43

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Solution

The fourth proportional to 17,420.67, 24,040.90 and 10,702.43 is: 14,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.67 : 24,040.90 = 10,702.43 : x
  2. Step 2: Convert to fraction form
    17,420.67/24,040.90 = 10,702.43/x
  3. Step 3: Cross multiply
    17,420.67x = 24,040.90 × 10,702.43
  4. Step 4: Simplify right side
    17,420.67x = 257,296,032.71
  5. Step 5: Solve for x
    x = 257,296,032.71/17,420.67
  6. Step 6: Final answer
    x = 14,769.58

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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.