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Finding the Fourth Proportional to 17,613.40, 26,420.10 and 16,749.40

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Solution

The fourth proportional to 17,613.40, 26,420.10 and 16,749.40 is: 25,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,613.40 : 26,420.10 = 16,749.40 : x
  2. Step 2: Convert to fraction form
    17,613.40/26,420.10 = 16,749.40/x
  3. Step 3: Cross multiply
    17,613.40x = 26,420.10 × 16,749.40
  4. Step 4: Simplify right side
    17,613.40x = 442,520,822.94
  5. Step 5: Solve for x
    x = 442,520,822.94/17,613.40
  6. Step 6: Final answer
    x = 25,124.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.